NATO Stock Number
5305-00-590-7883
Sold in multiples of
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.375 inches
Fastener Length
0.375 inches
Head Style
Round
Head Diameter
Between 0.334 inches and 0.359 inches
Head Height
Between 0.123 inches and 0.137 inches
Washer Quantity
1
Internal Drive Style
Cross recess type 1
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Hardness Rating
40.0 rockwell c primary washer and 50.0 rockwell c primary washer
Primary Washer Outside Diameter
Between 0.372 inches and 0.383 inches
Primary Washer Style
Flat internal teeth
Primary Washer Material Thickness
0.022 inches
Material
Steel comp 1010 fastener or steel fastener
Material
Steel comp 1050 primary washer or steel comp 1060 primary washer
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
Unf
