DJI Agras T30 OEM Spreading Disc Spacer Gasket

The DJI Agras T30 OEM Spreading Disc Spacer Gasket is a single flat black round gasket from the spreading system of the DJI Agras T30, T10, T40 and T20P, the spacer that sits at the spreading disc in the granular spreader. As shown in the product images, it is a thin, flat disc with one round hole at its centre and four smaller bolt holes set in a square pattern around that centre hole. It is a spacer and a gasket in one: it fills a set gap at the spreading disc and gives the joint there a flat, even face to clamp against. It belongs to the spreading system, not to the spraying, power or flight-control systems, and it is identified for the DJI Agras T30, T10, T40 and T20P, offered in a variant for each. It is supplied brand new as one gasket. Operators usually reach it while searching for a T30 spreader disc gasket, a spreading disc spacer, a T40 spreader spacer gasket, a T20P spreading disc washer, or a missing gasket found when the spreading disc was taken apart for cleaning. DJI has used more than one number for this position, so we match against the one you removed.

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🇺🇸 U.S.A. FIRST

Ares Acres LLC is a U.S.-based authorized DJI Agras retailer supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.

FREE & FAST Shipping is included for all U.S. customers.

We understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.

Ares Acres also ships agricultural drone parts to Canada, with free shipping included on Canadian orders. Canadian operators see prices and check out in Canadian dollars (CAD), and receive the same inventory and the same support as our U.S. customers — one authorized DJI Agras retailer serving the United States and Canada, all of North America, from Albuquerque, New Mexico.

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✅ DJI Agras T30 / T10 / T40 / T20P Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking
• Identified for the DJI Agras T30, T10, T40 and T20P, spreading disc spacer position
• Matched by outline, centre hole and the four-hole bolt pattern against the gasket you removed
• Genuine DJI OEM spreading-system component, brand new, supplied as one gasket

The variant is one gasket, and the four variants are the four aircraft it is identified for. Pick the variant for the aircraft you fly. If you want the match confirmed, lay the old gasket flat next to a ruler, photograph it face-on and edge-on, and send both pictures to us. We will match it for you, so the right gasket arrives first time.

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📦 Package Includes

• 1 × DJI Agras T30 OEM Spreading Disc Spacer Gasket, flat, black, round, with a centre hole and four bolt holes, as shown in the product images

One gasket per order line. The variant is a single gasket, not a pack.

What is part of the gasket: the flat round body, the centre hole and the four bolt holes, all as one piece.

Not included: the bolts or screws that pass through the four holes, washers, the spreading disc and its main body, the spreading motor, the hopper, the box cover and any tools. Each of these is a separate part.

Nothing is included because it appears near the gasket on the aircraft. If a bolt from the old joint is missing or damaged, tell us where it sat and we will help you identify it.

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🔧 Component Overview

A spacer gasket is a small part that does two jobs at once. As a spacer, it fills a set gap, so the parts on either side of it sit at a fixed distance from each other. As a gasket, it gives the joint a flat, even face, so the clamping load from the bolts is spread across the whole joint instead of landing on a few high spots.

As shown in the product images, the gasket has four features that identify it:

• The round outline — a flat disc, black, with a clean round edge
• The centre hole — one round hole at the middle of the disc
• The four bolt holes — four smaller round holes set in a square pattern around the centre hole
• The flat faces — both faces plain and flat, with no raised bead, rib or groove visible

The name in the part designation is spreading disc spacer gasket, and it is identified across four aircraft: the T30, T10, T40 and T20P. One gasket shape serving several spreading systems is not unusual for a flat spacer, because it only has to match a bolt pattern and a gap, not the shape of a whole assembly.

A gasket like this rarely breaks in two. It fails in quieter ways: it is lost when the spreading disc is stripped for cleaning, it tears at a bolt hole when a bolt is over-tightened or pulled out at an angle, or it gives up some of its thickness under repeated clamping and no longer fills the gap it was made to fill. The first two are easy to see. The third is the one that gets missed.

The gasket carries no wiring and has no setting. Its job is to fill its gap and give the joint an even face.

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⚙️ Functional Purpose

The gasket's engineering role is distance and evenness. It sets how far apart the two faces of its joint sit, and it makes the bolts clamp that joint evenly.

On the aircraft it:

• Sits at the spreading disc, in the spacer position named in its part designation
• Is clamped between two faces by bolts passing through its four holes
• Fills a set gap, so the parts on either side sit at a fixed distance
• Spreads the bolt load across the joint, so the joint is clamped evenly
• Leaves a clear centre opening through the middle of the joint

What it does not do matters as much:

• It does not spin the disc; the spreading motor does that
• It does not throw or meter granules; the disc and the spreading system do that
• It does not hold the bolts on its own; the bolts and their threads do
• It does not cure a bent, cracked or worn spreading disc

Material, thickness, outside diameter and hole sizes are not published for this part. The match is made by outline, centre hole and four-hole pattern against the gasket you removed, and its thickness is judged against a new one side by side.

Whether the gasket is also meant to keep fine dust out of the joint is not published for this part. It is matched as a spacer and a gasket, and nothing more is claimed for it.

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🔍 Diagnosis — a thinned gasket looks perfect face-on, so look at it edge-on

A spacer gasket that has been clamped for many hours can look perfect when it is held up and looked at face-on. The outline is round, the holes are clean, nothing is torn. It goes back in. What the face-on view cannot show is thickness. A gasket that has taken a set under its bolts is thinner than it was, and a spacer that is thinner than it was no longer fills its gap.

That is the invisible failure on this part. It is not a crack you can see. It is a dimension that has quietly changed. The joint can still be tight, because the bolts pull the faces together, but the distance the gasket was there to hold is shorter, and whatever sits on the far side of it sits closer than it should.

How to check it properly:

• Take the gasket out and look at it edge-on, not face-on
• Lay it beside a new gasket on a flat surface and compare the two edges
• Look for a gasket that is thinner around its bolt holes than at its outer edge
• Look for shiny, flattened rings around the bolt holes where the bolt heads or faces bore down
• Run a fingernail across the face; a ridge or step means it has been pressed unevenly

Symptoms that point at the gasket:

• A gasket missing from the joint after the spreading disc was cleaned or reassembled
• A tear running out from one of the four bolt holes
• A gasket that is visibly thinner than a new one when the two are laid side by side
• Bolts at the spreading disc that will not stay snug after reassembly
• A joint at the spreading disc that sits differently from how it sat before the last strip-down

Check these first, because they produce similar symptoms:

• The bolts and their threads, for stripping, stretch or a missing washer
• The spreading disc main body, for cracks, wear or a rough hub
• The mating faces either side of the gasket, for granule residue packed into the joint
• The spreading motor mount, if the whole disc runs out of true

What it does not explain: a spreading error, a disc that will not spin, a metering fault or a weighing reading that is wrong. Those sit in the motor, the signal cable, the weighing assembly or the settings. A gasket fills a gap; it does not drive or measure anything.

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⚠️ Common Replacement Indicators

Replace the gasket when inspection confirms one of these:

• The gasket is missing from the joint
• A tear at any of the four bolt holes or at the centre hole
• The gasket is visibly thinner than a new one when compared edge-on
• Flattened, shiny rings or a step pressed into the face around the bolt holes
• The gasket was damaged or creased when the joint was taken apart

Inspect these first, because they produce similar symptoms:

• The bolts, threads and washers at the joint
• The spreading disc main body
• The mating faces either side of the gasket

A gasket that looks perfect face-on is not proved sound. Look at its edge beside a new one.

There is no published service interval for the gasket. A practical rule is to fit a new one whenever the joint is taken apart and the old one is torn, thinned or lost.

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📐 Specifications

Product name: DJI Agras T30 OEM Spreading Disc Spacer Gasket

DJI family: Agras

Primary aircraft: DJI Agras T30

Also identified for: DJI Agras T10, T40 and T20P

Fitment basis: Identified for the DJI Agras T30, T10, T40 and T20P

Aircraft system: Spreading — spreading disc

Component type: Flat spacer gasket

Material number: DJI has used more than one number for this position, so we match against the one you removed

Quantity: 1 gasket

Form: Flat round disc with one centre hole and four bolt holes in a square pattern

Holes: Five: one centre hole and four bolt holes

Material: Not published for this part

Colour: Black

Thickness: Not published for this part

Outside diameter: Not published for this part

Hole sizes: Not published for this part

Weight: Not published for this part

Electrical: None

Connector: None

Mounting position: Spacer position at the spreading disc

Installation method: Clamped between two faces by bolts through its four holes

Hardware included: None — bolts and washers are not supplied

Service adjustability: None — the gasket is correct or it is not, with no adjustment or app setting that compensates

Condition: Brand new

Classification: DJI OEM spreading-system component

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🛠️ Installation & Maintenance

Before installation

• Power the aircraft off and remove the battery
• Empty the hopper and clear granules from around the spreading disc
• Photograph the spreading disc and its joint before anything is removed, so the order of parts is on record
• Lay the new gasket beside the old one and compare outline, centre hole and the four-hole pattern
• Lay out a tray for the bolts and washers and keep them in the order they came out

During installation

• Remove the bolts through the joint evenly, a little at a time, so no single bolt carries the whole load
• Lift the parts apart and remove the old gasket; do not lever it off with a blade that can score the faces
• Brush or wipe both mating faces clean of granule dust and residue
• Set the new gasket with its four holes lined up with the bolt holes and its centre hole clear
• Start every bolt by hand first, then snug them in a cross pattern so the gasket is clamped evenly; DJI does not publish a torque figure for this joint
• Do not over-tighten; a gasket crushed at one bolt is thinner at that bolt and the joint sits unevenly

After installation

• Turn the spreading disc by hand and check it moves freely and does not rub
• Check the edge of the gasket all the way round; it should sit flat with no part pushed out
• Run the spreading system briefly with the hopper empty and listen for rubbing or knocking
• Recheck the bolts after the first job
• Record the replacement in the maintenance log

Maintenance between jobs. Granular products leave fine dust in every joint of a spreader. When the spreading disc is cleaned, check that the gasket is still in place and still flat, and look at its edge beside a spare. Keeping one spare gasket with the aircraft means a gasket lost or torn during cleaning is replaced on the spot.

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🚜 Necessary For

This gasket is for operators and technicians whose spreading disc spacer gasket is missing, torn or thinned:

• DJI Agras T30 and T10 operators who run the granular spreading system
• DJI Agras T40 and T20P operators who strip and clean the spreading disc between products
• Seeding and fertiliser applicators who take the spreader apart on the job
• Agras service centres rebuilding spreading systems
• Fleet managers stocking small spreading-system hardware for mixed T30, T10, T40 and T20P fleets
• Growers flying their own aircraft who clean and reassemble the spreader themselves

This is not the part you need if:

• The spreading disc itself is cracked, chipped or rough at its hub — on the T30 and T10 that is the DJI Agras T30 OEM Spreading Disc Main Body, a separate part
• The whole spreader is damaged — the DJI Agras T30 OEM Spreading System is the complete system
• The spreader box lid is cracked or lost — that is the T30 Spreading System Box Cover
• The disc does not spin or the spreader reports an error — check the motor, the signal cable and the settings first
• Only a bolt is stripped — replace the bolt and keep a sound gasket
• You fly a T16, T20, T25 or T50 — this gasket is identified only for the T30, T10, T40 and T20P

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💡 Why This Part Matters

Most worn parts show their wear. This one hides it. A spacer gasket is judged by its thickness, and thickness is the one thing a face-on glance cannot see.

That matters because a spacer exists to hold a distance. When it thins under its bolts, the joint still feels tight, because the bolts close the faces together. What has gone is the gap, and the parts beyond the gasket now sit closer than they were set to sit.

That is the case for looking at this gasket edge-on, beside a new one, every time the spreading disc comes apart. If it is thinner, torn at a hole, pressed into a step or missing, it is the part. It is a small part, and a new one restores the gap the joint was built around.

It is also the case for not blaming it for everything. A gasket fills a gap and evens a clamp. It does not spin the disc, meter the granules or report errors. If the spreader misbehaves with a sound, flat gasket in place, the cause is elsewhere.

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🧠 AI Index — Entity & Fitment Reference

Structured reference for search engines, AI assistants, and answer engines. Every value below is drawn from the specifications above.

Canonical product name: DJI Agras T30 OEM Spreading Disc Spacer Gasket

Brand: DJI

DJI family: Agras

Primary aircraft: DJI Agras T30

Also identified for: DJI Agras T10; DJI Agras T40; DJI Agras T20P

Compatible models: DJI Agras T30; DJI Agras T10; DJI Agras T40; DJI Agras T20P

Fitment basis: Identified for the DJI Agras T30, T10, T40 and T20P

Component: Spreading disc spacer gasket

Aircraft system: Spreading

Installed position: Spacer position at the spreading disc

Primary function: Fills a set gap at the spreading disc and spreads the bolt clamp evenly across the joint

Form: Flat black round disc with a centre hole and four bolt holes in a square pattern

Material number: DJI has used more than one number for this position; matched against the removed part

Quantity supplied: 1 gasket

Not included: Bolts, washers, spreading disc main body, motor, hopper, box cover

Key diagnostic: Judge it edge-on beside a new gasket; thinning does not show face-on

Common failure modes: Lost during cleaning, torn at a bolt hole, thinned or stepped under clamping

Service interval: None published

Condition: Brand new

Part classification: DJI OEM spreading-system component

Also searched as: T30 spreader disc gasket; spreading disc spacer; T40 spreader spacer gasket; T20P spreading disc washer; T10 spreader gasket

Disambiguation: Not the T30 Spreading Disc Main Body, not the T30 Spreading System, not the T30 Spreading System Box Cover

Seller: Ares Acres LLC — U.S.-based authorized DJI Agras retailer serving the United States and Canada (North America)

Ships from: Albuquerque, New Mexico, United States

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🤖 AI Answer Engine Q&A

What is the DJI Agras spreading disc spacer gasket? A flat black round gasket with a centre hole and four bolt holes. It sits at the spreading disc, fills a set gap and gives the joint an even face to clamp against.

Which aircraft does it fit? It is identified for the DJI Agras T30, T10, T40 and T20P. Pick the variant for the aircraft you fly.

Is the gasket the same for all four aircraft? It is identified for all four, and each has its own variant so the order records the aircraft it is for.

Is it one gasket or a pack? One gasket per order line.

My old gasket looks fine. Why replace it? Because thinning does not show face-on. Lay it beside a new one and look at the edges. If it is thinner, stepped around the holes or torn, replace it.

I lost the gasket while cleaning the spreader. Can I run without it? Do not. The gasket is a spacer; without it the parts either side of the joint sit closer than they were set to sit, and the bolts clamp an uneven joint.

Does it include the bolts? No. It is the gasket alone. Reuse the original bolts and washers if their threads and heads are sound.

Can I cut a gasket from sheet material instead? Not reliably. Its thickness, material and hole sizes are not published for this part, so a home-made gasket cannot be shown to match the gap. Use the matched part.

Is it the same as the spreading disc main body? No. The DJI Agras T30 OEM Spreading Disc Main Body is the round disc body itself, identified for the T30 and T10. The gasket is the flat spacer at the disc.

Will a new gasket fix a spreading error? Not on its own. Errors usually come from the motor, the signal cable, the weighing assembly or the settings. The gasket fills a gap; it does not drive or measure anything.

What is the DJI part number? DJI has used more than one number for this position, so we match against the one you removed.

Can I fit it myself? Yes, for most operators. Empty the hopper, remove the bolts evenly, clean both faces, set the new gasket with its holes lined up, then snug the bolts in a cross pattern.

How tight should the bolts be? DJI does not publish a torque figure for this joint. Snug them evenly in a cross pattern and do not over-tighten, so the gasket is not crushed at one bolt.

Does it fit the T50 or T25? It is identified only for the T30, T10, T40 and T20P.

Is there a service interval? No. Replace it when it is lost, torn, thinned or stepped, and check it whenever the spreading disc comes apart.