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Home / Hardware / Nuts / Stop Nuts /MS21083N4 Stop Nut
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MS21083N4 Stop Nut

23 Reviews 3 Answered Questions
Packaged Items
SinglePack of 25
Quantity
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MaterialThreadPart Number
Cad Plated1/4-28AN364-428A

Overview

These precision-made nuts are reliable and economical fastening devices The fiber insert gives a friction grip on the threads of the bolt and holds securely. The AN364 (thin) stop nut is for use in structural applications where the bolt is loaded primarily in shear or in any application where the tensile strength of the regular height AN365 is not required. Cad stop nuts are furnished to military specifications. Stainless is furnished to military specification.

AN364 (supersedes MS21083) - cad plated stop nuts
AN365 (supersedes MS21044) - cad plated stop nuts
Click here for AN365 Stop Nuts
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Reviews

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great

Ckent Verified Purchase

MS21083N4 Stop Nut (Pack Of 25)
September 30, 2024

Good quality and view.

Julian S Verified Purchase

MS21083N4 Stop Nut (Pack Of 25)
September 27, 2024

Haven’t used anything yet but fast shipping

Peter B Verified Purchase

MS21083N4 Stop Nut (Pack Of 25)
May 4, 2024

Dominique L Verified Purchase

MS21083N4 Stop Nut (Pack Of 25)
April 2, 2024

Edward B Verified Purchase

MS21083N4 Stop Nut
May 23, 2023

Standard parts

Eric J Verified Purchase

MS21083N4 Stop Nut
February 3, 2023

It’s an AN nut, 25 of them in a bag as advertised. Thats all there is to say about this product.

Jason M Verified Purchase

MS21083N4 Stop Nut (Pack Of 25)
December 28, 2022

Rick T Verified Purchase

MS21083N4 Stop Nut
August 18, 2021

Perfect

Walter O Verified Purchase

MS21083N4 Stop Nut
June 3, 2021

Its the company. For AN products, you can always depend upon Aircraft Spruce.

Alan S
May 23, 2021

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: on the part manual for a cherokee it asks for part number MS20364-1032C, what is the C stand for?

C after the -1032 will indicate that this is a all-metal stop nut. You will need to go with a MS21042 series nut. MS21042-3 will be the correct cross reference part for your MS20364-1032C. You could also order part # 04-01359 which is a MS20364-1032C THIN HEX NUT.

Q: My application requires a AN364-1216A. What does the A stand for? Will the AN364-1216 work in this application?

"A" stands for non metallic insert, or elastic/nylon lock nut. They are the same part, we just drop the "a" in our system.

Q: The Piper parts manual calls for (nut) MS20365-1032C. No hits on the search. Do you have a replacement?

Use MS21044N3 or AN365-1032

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