Spec hardware, served at warp speed.

nuts › self-locking hexagon nuts

MS21046C6E

Military Standard Locking Hexagon Nut Self

View quote list → Saved parts →

Description

MS21046 series nut

Specifications

Bearing Surface Type Chamfered or washer faced
Locking Feature Prevailing torque all metal design
Material Steel
Nut Height 0.318 inches minimum and 0.469 inches maximum
Nut Style Hexagon
Precious Material Silver
Special Features Elliptical lock
Surface Treatment Silver
Temperature Rating 800.0 deg fahrenheit
Thread Class 3b
Thread Direction Right-hand
Thread Qty 24
Thread Qty Per Inch (tpi) 24
Thread Series UNJF
Thread Size 0.375
Width Across Flats 0.553 inches minimum and 0.564 inches maximum

Other sizes

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

Cross-reference

Similar parts

Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.

Looking for a specific part? Use the cross-reference lookup.

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