AN365 Elastic Stop Nuts (Fiber Insert)

The fiber-insert stop nut in cadmium and stainless, with the thin AN364 noted for shear-loaded bolts.

As listed

FieldValue
SellerAircraft Spruce
TypeElastic (fiber insert) stop nut
MaterialsCadmium-plated steel, stainless
SupersedesAN365 supersedes MS21044; AN364 supersedes MS21083 (per the listing)
Listing checked2026-09-30

Taken from Aircraft Spruce's product page on 2026-09-30. Where the listing does not state a figure, this table does not either.

What it is for

The listing distinguishes AN364 (thin) for bolts loaded mainly in shear from AN365 (regular height). Use the one the drawing or SRM calls out.

For high temperature, see MS21042.

Sizes listed

MaterialThreadPart Number
Cad Plated4-40AN365-440
Cad Plated6-32AN365-632A
Cad Plated8-32AN365-832A
Cad Plated10-24AN365-1024A
Cad Plated10-32AN365-1032A
Cad Plated1/4-28AN365-428A
Cad Plated5/16-24AN365-524A
Cad Plated3/8-24AN365-624A
Cad Plated7/16-20AN365-720A
Cad Plated1/2-20AN365-820A
Cad Plated9/16-18AN365-918
Cad Plated5/8-18AN365-1018
Cad Plated3/4-16AN365-1216
Stainless10-32AN365C-1032
Stainless7/16-20AN365C-720

As listed by Aircraft Spruce on 2026-09-30. Check the live listing before ordering: stock and part numbers change.

Where to buy

The link opens Aircraft Spruce's own page for this item, so the price and stock you see are theirs and current. We do not copy prices.

The Aviation Point links to third-party manufacturer and distributor websites. We may earn a commission on purchases made through these links, at no additional cost to you. The Aviation Point has no partnership or affiliate agreement with Aircraft Spruce, and these links carry no tracking parameters.

Sources

Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.
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