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Home / Hardware / Nuts / Stop Nuts /Nut, Stop MS21042-4
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Nut, Stop MS21042-4

30 Reviews 4 Answered Questions
Packaged Items
SinglePack of 25
Price Includes GST
Quantity
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TypePart No.Thread
Dry Hex NutMS21042-41/4-28

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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Tim H Verified Purchase

Nut, Stop MS21042-4
September 13, 2024

I have found these nuts to work well just about anywhere, even high-heat applications.

Alfred B Verified Purchase

Nut, Stop MS21042-4 (Pack Of 25)
September 3, 2024

as described

Roger P Verified Purchase

Nut, Stop MS21042-4 (Pack Of 25)
May 2, 2024

Not having the correct hardware drives me nuts.

Jim P Verified Purchase

Nut, Stop MS21042-4
June 15, 2023

Jim M Verified Purchase

Nut, Stop MS21042-4
November 19, 2022

Work well , Like the package of 25!

Steve L Verified Purchase

Nut, Stop MS21042-4 (Pack Of 25)
September 16, 2022

Magaero L Verified Purchase

Nut, Stop MS21042-4 (Pack Of 25)
August 23, 2022

Leslie H Verified Purchase

Nut, Stop MS21042-4 (Pack Of 25)
April 19, 2022

Mark M Verified Purchase

Nut, Stop MS21042-4
January 12, 2022

nice and quick

Lonny L Verified Purchase

Nut, Stop MS21042-4
January 4, 2022

Q&A

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Please note, Aircraft Spruce Australia'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 Australia 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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