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Home / Hardware / Nuts / Stop Nuts /NUT, STOP MS21042-6
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NUT, STOP MS21042-6

23 Reviews 4 Answered Questions
$0.87/Piece
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Part# MS21042-6
MFR Model# 16620-5
TypePart No.Thread
Dry Hex NutMS21042-63/8-24

Overview

The MS21042 all-metal stop nuts are designed for use in high temp installations (up to 450°F). MS21042 nuts are shorter than the AN363 nut but develop the same tensile strength. MS21042 Hex Nuts (Lubed) are the same as MS21042- but have a dry film lube (dark grey).

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Reviews

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Parts as described, ordered on Friday picked up on Monday,

Kenneth M Verified Purchase

NUT, STOP MS21042-6
August 29, 2023

good quality

Matthew P Verified Purchase

NUT, STOP MS21042-6
April 1, 2022

Puddle J Verified Purchase

NUT, STOP MS21042-6
March 25, 2022

Mark M Verified Purchase

NUT, STOP MS21042-6
January 12, 2022

proper order... Thanks

James D Verified Purchase

NUT, STOP MS21042-6
October 19, 2021

Great product

Ira H Verified Purchase

NUT, STOP MS21042-6
August 25, 2021

Perfect for the application they were needed for.

Ira H Verified Purchase

NUT, STOP MS21042-6
August 11, 2021

Order shipped promptly, sales person very polite

Charles M
April 20, 2021

Great nut for small tight places and firewall forward where heat is an issue.

Lewis M
September 23, 2020

Use these on my race car to reduce weight and ensure a secure fit.

John
March 19, 2020

Q&A

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Please note, Aircraft Spruce'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 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: Is MS21042-06 cad plated steel?

Yes, these are cad plated steel.

Q: What is the equivalent nut in Stainless Steel?

MS21043-4 (our part number 04-01388.)

Q: What is the reason for choosing a dry or lubed version of these Hex Nuts?

It helps prevent corrosion.

Q: Are these MS21042 ALL-METAL HEX STOP NUTS self locking?

Yes.

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