NATO Stock Number
5306-01-335-2897
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 1.016 inches and 1.066 inches
Fastener Length
Between 3.776 inches and 3.806 inches
Head Style
Dished hexagon
Head Height
Between 0.375 inches and 0.390 inches
Width Between Flats
Between 1.052 inches and 1.064 inches
Washer Quantity
1
Shank Unthreaded Hole Diameter
0.141 inches first hole and 0.151 inches first hole
Thread Diameter
0.750 inches
Features Provided
Spacer
Thready Qty Per Inch (tpi)
16
Min. Tensile Strength (psi)
160000 pounds per square inch
Hardness Rating
36.0 rockwell c fastener and 40.0 rockwell c fastener
Distance From Head Largest Bearing Surface To Shank Hole Center
3.514 inches first hole and 3.564 inches first hole
Primary Washer Outside Diameter
1.250 inches
Primary Washer Style
Flat
Primary Washer Material Thickness
0.062 inches
Material
Steel comp 1330 primary washer or steel comp 4130 primary washer
Material
Steel comp e4340 fastener or steel comp 4140 fastener or steel comp 6150 fastener or steel comp 8735 fastener or steel comp 8740 fastener
Material Specification
Fed 66 federal standard all material responses primary washer
Surface Treatment
Cadmium fastener and chromate fastener
Surface Treatment Specification
Qq-p-416 type 2, cl 2 federal specification single treatment response fastener
Thread Series Designator
Unjf
