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Home / Hardware / Washers /82° Countersunk Washers
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82° Countersunk Washers

13 Reviews 4 Answered Questions
From $0.17 to $0.36
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Type Screw or Bolt Size PN Price Price
for 100		 Buy
Countersunk#4
04-03898
$0.26$21.00
Quantity
Countersunk#6
04-03899
$0.23$18.00
Quantity
Countersunk#8
04-03901
$0.20$16.00
Quantity
Countersunk#10
04-01946
$0.26$21.00
Quantity
Flush#6
04-03895
$0.20$16.00
Quantity
Flush#8
04-03896
$0.17$14.00
Quantity
Flush#10
04-03897
$0.36$29.00
Quantity
Subtotal $0.00
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Overview

82° finishing washers are used in non-structural interior and upholstery applications. The parts covered by NAS390 & NAS391 are getting harder to procure and do not necessarily conform exactly to all of the dimensions stated on the specs.

Brass, nickel plated.
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Reviews

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Good replacement and extra on hand.

Jerome T Verified Purchase

Flush Washer #39008F
April 24, 2024

Good replacement and extra on hand.

Jerome T Verified Purchase

Flush Finish Washer 39006F
April 24, 2024

Rogerio S Verified Purchase

39104C Finishing Washer
March 8, 2024

does not correspond to picture and spec

Alps A Verified Purchase

Flush Washer #39008F
January 6, 2023

These also are difficult to count and I sympathize with those filling the order, but this was short by 3 washers

Boyd F Verified Purchase

Flush Washer #39008F
January 11, 2022

I realize these are difficult to count but this item was short by one washer

Boyd F Verified Purchase

Flush Finish Washer 39010F CommL
January 11, 2022

Washers work well with counter sunk screws

Keeton A Verified Purchase

Flush Washer #39008F
December 2, 2021

Work good and look good

Keeton A Verified Purchase

Washer NAS391B6P / 601-6 39106C
December 2, 2021

Perfect fit

M & Verified Purchase

39104C Finishing Washer
October 6, 2021

I used this on a carbon fiber panel where I needed the surface area to hold the part and a clean finish (no fastner head to get hung up). Used in conjunction with Phillip head machine screws.

John
March 19, 2020

Q&A

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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: Regarding Part # NAS391B4P: What is the metal? Stainless? nickel plated steel, plastic , brass?

Part # NAS391B4P is brass.

Q: You say part #391B4P is brass. The photos show this to be chrome or nickel plated? Are they chrome plated brass or brass colored?

They are nickel plated brass, the photo is accurate. They look polished like in the photos.

Q: what is the difference between countersunk and flush?

Countersunk sits proud of the surface but the screw will countersink into the washer. Flush would be flush with the surface.

Q: what is the OD of the 04-03897?

This measures to 0.467".

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