NATO Stock Number
5310-00-151-5430
Sold in multiples of
50 EA
DEMIL
NO
Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque with nonmetallic insert
Washer Outside Diameter
Between 0.610 inches and 0.640 inches
Counterbore Diameter
0.385 inches nut and 0.395 inches nut
Overall Height
Between 0.396 inches and 0.436 inches
Nut Style
Flat with turned back edge
Nut Height
0.203 inches
Nut Counterbore Depth
0.203 inches nut and 0.223 inches nut
Width Across Flats
Between 0.492 inches and 0.502 inches
Tempurature Rating
250.0 degrees fahrenheit
Thread Series
Unjf
Thready Qty Per Inch (tpi)
24
Thread Size
0.312 inches
Countersink Angle
60.0 degrees nut
Material
Plastic nylon locking insert
Material
Steel comp 1137 nut or steel comp 11l37 nut or steel comp 8740 nut
Material Specification
Ams 5024 assn standard 1st material response nut or ams 5020 assn standard 2nd material response nut or ams 6322 assn standard 3rd material response nut or ams 6323 assn standard 3rd material response nut or ams 6325 assn standard 3rd material response nut or ams 6327 assn standard 3rd material response nut or ams 6358 assn standard 3rd material response nut
Material Specification
Qq-a-225/6, t4 federal specification 1st material response washer or qq-a-250/13, t6 federal specification 2nd material response washer
Surface Treatment
Chromate washer
Surface Treatment
Cadmium nut and chromate nut
Surface Treatment Specification
Mil-c-5541 military specification single treatment response washer
