NATO Stock Number
5306-00-014-3331
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.494 inches and 0.625 inches
Fastener Length
Between 0.594 inches and 0.625 inches
Head Style
Hexagon
Head Height
Between 0.172 inches and 0.190 inches
Width Between Flats
Between 0.428 inches and 0.437 inches
Washer Quantity
1
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Primary Washer Outside Diameter
Between 0.460 inches and 0.475 inches
Primary Washer Style
Flat external teeth
Primary Washer Material Thickness
Between 0.023 inches and 0.028 inches
Material
Steel comp 410 or steel comp 410
Material Specification
66 federal standard all material responses
Surface Treatment
Passivate
Surface Treatment Specification
Es-3 fscm 80256 mfr ref single treatment response
Thread Series Designator
Unc