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Home / Hardware / Nuts / Castle Nuts /Nut, Castle AN310-6
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Nut, Castle AN310-6

34 Reviews 2 Answered Questions
Packaged Items
SinglePack of 10
Quantity
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TypePart No.Thread SizeCotter Pin Size
Cad PlatedAN310-63/8-24AN380-3-3

Overview

Fabricated from steel and cadmium plated per QQ-P-416A, Type II, Class 3. AN310 castle nuts are used with drilled-shank bolts, clevis bolts, eye bolts and studs. The slots in the nut accommodate a cotter pin for safety purposes. The thinner AN320 castellated shear nut, with half the tensile rating of the AN310 nut, is used with clevis bolts and threaded taper pins which are subject to shearing stress only.

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Reviews

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I’m happy

Lou B Verified Purchase

Nut, Castle AN310-6 (Pack Of 10)
September 3, 2024

Jk A Verified Purchase

Nut, Castle AN310-6
August 3, 2024

Silver S Verified Purchase

Nut, Castle AN310-6 (Pack Of 10)
January 29, 2024

Glenn M Verified Purchase

Nut, Castle AN310-6
January 18, 2024

ok

Glenn M Verified Purchase

Nut, Castle AN310-6
January 18, 2024

Robert P Verified Purchase

Nut, Castle AN310-6 (Pack Of 10)
September 29, 2023

Robert P Verified Purchase

Nut, Castle AN310-6 (Pack Of 10)
September 29, 2023

Excellent Parts

Dave C Verified Purchase

Nut, Castle AN310-6
June 3, 2023

As advertised

John B Verified Purchase

Nut, Castle AN310-6
April 23, 2023

Martin B Verified Purchase

Nut, Castle AN310-6
March 22, 2023

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: Are these castle nuts unified national fine thread?

Yes, they are standard AN UNF thread.

Q: What are the hex sizes and height for the AN310-6 and 310-8 castle nuts?

AN310-6 would use a 9/16 wrench and is 13/32 tall

An310-8 would use a 3/4 wrench and is 9/16 tall.

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