NATO Stock Number
5310-01-175-7603
Sold in multiples of
EA
DEMIL
NO
Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque with nonmetallic insert
Washer Outside Diameter
Between 0.530 inches and 0.560 inches
Counterbore Diameter
0.299 inches nut and 0.309 inches nut
Overall Height
Between 0.365 inches and 0.405 inches
Nut Style
Flat with turned back edge
Nut Height
Between 0.193 inches and 0.213 inches
Nut Counterbore Depth
0.172 inches nut and 0.192 inches nut
Width Across Flats
Between 0.430 inches and 0.439 inches
Tempurature Rating
250.0 degrees fahrenheit
Thread Series
Unjf
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Bearing Surface Finish
125.0 microinches
Material
Plastic nylon locking insert
Material Specification
Ams 5525 assn standard single material response nut or ams 5532 assn standard single 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
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response nut
