NATO Stock Number
5307-01-114-5255
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a nut thread
Thread Pitch Diameters
+0.2778/+0.2795 inches stud thread
Thread Direction
Right-hand nut thread
Thread Direction
Right-hand stud thread
Thread Length
0.485 inches nut thread and 0.515 inches nut thread
Thread Length
0.375 inches stud thread and 0.405 inches stud thread
Locking Feature
Ring, lock serrated
Overall Length
Between 1.530 inches and 1.590 inches
Distance From Serrated Portion To Nut End
Between 0.985 inches and 1.015 inches
Distance From Serrated Portion To Stud End
Between 0.545 inches and 0.575 inches
Distance From Serrated Portion To End Of Stud Thread
Between 0.140 inches and 0.200 inches
Distance From Cotter Pin Hole Centerline To Nut End
0.145 inches first hole and 0.175 inches first hole
Cotter Pin Hole Diameter
0.076 inches first hole
Serration Quantity
17
Thready Qty Per Inch (tpi)
28 nut thread
Hardness Rating
26.0 rockwell c
Thread Size
0.250 inches nut thread
Surface Finish
32.0 microinches nut thd
Serration Included Angle
86.0 degrees
Material
Steel comp 4130
Material Specification
Mil-s-6758 military specification single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416 ty2 cl3 federal specification single treatment response
Style Designator
Locked in
Thread Series Designator
Unf nut thread
