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MS21042L08

Military Standard Locking Extended Washer Nut Self

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Description

Nut

Specifications

Criticality Code Justification Feat
Hardness Rating 49 rockwell c
Locking Feature Prevailing torque all metal design
Lubrication Dry film lubricant
Material Steel
NIIN 00-807-1473
NSN 5310-00-807-1473
Nut Style Hexagon
Overall Height Between 0.125 inches and 0.188 inches
Pre-Packaged Bag Quantity 100
Special Features The item is a flight safety critical aircraft part (fscap).
Surface Treatment Cadmium
Surface Treatment Specification Cl 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 UNJC
Thread Size 0.164
Washer Outside Diameter 0.290
Washer Thickness 0.015
Weight 0.0013 lb
Width Across Flats Between 0.213 inches and 0.221 inches

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