NATO Stock Number
5305-00-696-5299
Sold in multiples of
100 EA
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.591 inches and 0.727 inches
Fastener Length
0.750 inches
Head Style
Pan
Head Diameter
Between 0.473 inches and 0.492 inches
Head Height
Between 0.162 inches and 0.175 inches
Washer Quantity
1
Internal Drive Style
Cross recess type 1
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Hardness Rating
40.0 rockwell c primary washer and 50.0 rockwell c primary washer
Primary Washer Outside Diameter
Between 0.494 inches and 0.510 inches
Primary Washer Style
Flat external teeth
Primary Washer Material Thickness
Between 0.023 inches and 0.028 inches
Surface Treatment
Cadmium or zinc
Surface Treatment Specification
Qq-p-416, type 1, cl 3 federal specification 1st treatment response or qq-z-325, type 1, cl 3 federal specification 2nd treatment response
Thread Series Designator
Unc