NATO Stock Number
5310-00-105-3961
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3b
Thread Direction
Right-hand
Washer Outside Diameter
Between 0.428 inches and 0.448 inches
Overall Height
Between 0.401 inches and 0.411 inches
Nut Style
Double hexagon
Washer Thickness
Between 0.065 inches and 0.075 inches
End Application
W/s: aircraft, f-111; engine, aircraft tf-30
Width Across Flats
Between 0.367 inches and 0.376 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Material
Iron alloy 660
Material Specification
Ams 5735 assn standard single material response
Precious Material
Silver
Surface Treatment
Silver