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Home / Hardware / Nuts / Stop Nuts /Ms21042 All-metal Hex Stop Nuts
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MS21042 ALL-METAL HEX STOP NUTS

27 Reviews 4 Answered Questions
From $0.22 to $0.92
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Type Part No. Thread Price Buy
Dry Hex Nut
04-04060
4-40$0.345
Quantity
Dry Hex Nut
MS21042-06
6-32$0.35
Quantity
Dry Hex Nut
MS21042-08
8-32$0.24
Quantity
Dry Hex Nut
MS21042-3
10-32$0.22
Quantity
Dry Hex Nut
MS21042-4
1/4-28$0.30
Quantity
Dry Hex Nut
MS21042-5
5/16-24$0.92
Quantity
Dry Hex Nut
MS21042-6
3/8-24$0.68
Quantity
Lubed Hex Nut
MS21042-L04
4-40$0.39
Quantity
Lubed Hex Nut
MS21042-L06
6-32$0.38
Quantity
Lubed Hex Nut
MS21042-L08
8-32$0.42
Quantity
Lubed Hex Nut
MS21042-L3
10-32$0.36
Quantity
Lubed Hex Nut
MS21042-L4
1/4-28$0.31
Quantity
Lubed Hex Nut
MS21042-L5
5/16-24$0.67
Quantity
Lubed Hex Nut
MS21042-L6
3/8-24$0.77
Quantity
Subtotal $0.00
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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).

Less 20% for quantity 100/Part No.
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Reviews

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Great quality Hardware!

Westwood A Verified Purchase

NUT, STOP MS21042-06
September 9, 2021

Great product

Ira H Verified Purchase

NUT, STOP MS21042-3
August 27, 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 MS21042-3
August 11, 2021

Perfect for the application they were needed for.

Ira H Verified Purchase

NUT, STOP MS21042-6
August 11, 2021

M & Verified Purchase

HEX NUT MS21042L5
July 16, 2021

excellent quality as expected. thanks

Don L Verified Purchase

NUT, STOP MS21042-4
July 8, 2021

Purchased these stop nuts for head nuts on Lycoming O-145 engine. Access is extremely tight. These worked perfectly.

Jackson M Verified Purchase

NUT, STOP MS21042-5
July 3, 2021

Ronald M Verified Purchase

NUT, STOP MS21042-3
June 24, 2021

Ronald M Verified Purchase

NUT, STOP MS21042-4
June 24, 2021

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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