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MS21045-6

Military Standard Locking Hexagon Nut Self

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Description

Nut

Specifications

Bearing Surface Finish 125.0 microinches
Bearing Surface Type Chamfered or washer faced
Countersink Angle 88.0 degrees nut
Features Regular Height
Industry Standards/Certification MS21045
Locking Feature Prevailing torque all metal design
Lubricant Non-Dry Lubricant
Lubrication Soluble lubricant
Material Steel
Maximum Dimension A 0.469 in
Maximum Dimension B 0.564 in
Minimum Dimension A 0.318 in
Minimum Dimension B 0.553 in
Minimum Dimension C 0.622 in
Minimum Dimension F 0.153 in
NIIN 00-982-4908
NSN 5310-00-982-4908
Nut Height Between 0.318 inches and 0.469 inches
Nut Style Hexagon
Service Temperature 450 ºF
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 MIL-S-8879 0.3750-24
Thread Qty 24
Thread Qty Per Inch (tpi) 24
Thread Series Unjf (fine thread with external controlled root radius)
Thread Size 0.375, 3/8-24
Type Self-Locking Nut
Weight 0.025 lb
Width Across Flats Between 0.553 inches and 0.564 inches

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