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100° CSK Stainless Washers

From $0.34 to $0.46
Size Dimensions Part No. Price Ea. Buy
6.500 OD x .012T
04-00397
$0.46
Quantity
8.562 OD x 0.17T
04-00392
$0.34
Quantity
10.750 OD x .020 T
04-00398
$0.46
Quantity
Subtotal $0.00
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Overview

Use with 100° flat head screws to provide reinforced, low-profile attachments.

Less 20% Discount on 100 per size
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Reviews

The product is received

North S Verified Purchase

Wa-8 Stainless Steel Washer A3135-Ss-017 #8

November 12, 2025

James M Verified Purchase

Wa-8 Stainless Steel Washer A3135-Ss-017 #8

November 9, 2025

James M Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

November 9, 2025

Use these for interior install after annual inspection

Silas K Verified Purchase

Wa-8 Stainless Steel Washer A3135-Ss-017 #8

November 4, 2025

Use these for interior install after annual inspection

Silas K Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

November 4, 2025

Use these for interior install after annual inspection

Silas K Verified Purchase

#6 Stainless Steel Csk Washer A3236-Ss-012

November 4, 2025

Knew about washers from working on aircraft in the Air Force. I Used them to hold down the floor on my boat, works well in pulling down and distributing weight evenly on floor.

Merrell W Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

November 4, 2025

Quality product and fast delivery. I am very satisfied with this company.

Merrell W Verified Purchase

Wa-8 Stainless Steel Washer A3135-Ss-017 #8

October 18, 2025

Joseph S Verified Purchase

Wa-8 Stainless Steel Washer A3135-Ss-017 #8

July 23, 2025

5 stars

James M Verified Purchase

Wa-8 Stainless Steel Washer A3135-Ss-017 #8

July 10, 2025

Q&A

Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Are these polished stainless steel?

Yes, these have a shiny stainless steel appearance.

Q: What is the military number for this washer?

The #6 washer is a A3236-SS-012.

Q: What type of stainless steel are these countersunk washers made of? Examples: SS. Type 304, Type 18-8, Type: 316, etc.

302 1/2 Hard per the supplier.

Q: What size (#6, 8, 10 etc) CSK washer would accept an AN-3 bolt?

AN bolts are not countersunk but the diameter would a #10.

Q: Are they magnetic?

These can be semi ferris.

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