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MS21042L3

Military Standard Locking Extended Washer Nut Self

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Description

Nut

Specifications

Hardness Rating 49 rockwell
Locking Feature Prevailing torque all metal design
Lubrication Dry film lubricant
Material Steel
NIIN 00-807-1474
NSN 5310-00-807-1474
Nut Style Hexagon
Overall Height Between 0.154 inch and 0.188 inch
Pre-Packaged Bag Quantity 100
Special Features The item is a flight safety critical aircraft part (fscap)
Surface Treatment Cadmium and chromate
Surface Treatment Specification Class 3 federal specification single treatment response type 2 qq-p-416
Temperature Rating 450 degrees fahrenheit
Thread Class 3b
Thread Direction Right-hand
Thread Qty 32
Thread Qty Per Inch (tpi) 32
Thread Series Unjf (fine thread with external controlled root radius)
Thread Size 0.19
Washer Outside Diameter 0.33
Washer Thickness 0.015
Weight 0.0017 lb
Width Across Flats Between 0.243 inch and 0.252 inch

Other sizes

Parts that share this base number, ordered by size. Always verify the full specification before substituting.

Cross-reference

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Catalog data updated 2026-07-05. Report a data error