Dimpled Anchor Nuts K1100 and MS21053

Nut plates with dimpled lugs, to sit under flush rivets in dimpled skin.

As listed

FieldValue
SellerAircraft Spruce
Two lugK1100-06 (6-32), K1100-08 (8-32)
One lugMS21053-L08 (8-32)
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 lugs are dimpled to nest under a dimpled skin with AN426 flush rivets.

Drill the two rivet holes with a jig: anchor nut jigs at LAS list the hole spacing per screw size, Yardstore's jig set the US option.

Sizes listed

TypeModelThreadPart No.
Two LugK1100-066-3204-01724
Two LugK1100-088-3204-01725
One LugMS21053-L088-3204-01726

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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