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Worldwide distributor of NSN parts and consumables located in the USA.

Stepped Stud

Model / MPN: P61388-1 | NSN: 5307-00-145-0491
ITAR Registered seal

A headless fastener not exceeding 12 inches (304.8 mm) in length, threaded externally on both ends on which the diameter of one threaded section is greater than the other. The entire unthreaded portion must be of a single diameter equal to or smaller than the major diameter of the larger threaded end. Includes radial grooves or thread reliefs. Excludes items with tapered threads.

Product Details
NATO Stock Number
5307-00-145-0491
Sold in multiples of
DEMIL
NO
Thread Class
3a nut thread
Thread Pitch Diameters
+0.3435/+0.3451 inches stud thread
Thread Pitch Diameters
+0.3435 to 0.3451 inches stud thread
Thread Direction
Right-hand nut thread
Thread Direction
Right-hand stud thread
Thread Length
0.521 inches stud thread
Thread Length
0.438 inches nut thread
Shank Diameter
0.312 inches
Overall Length
1.531 inches
Thready Qty Per Inch (tpi)
16 stud thread
Thready Qty Per Inch (tpi)
24 nut thread
Hardness Rating
Between 28.0 rockwell c and 32.0 rockwell c
Thread Size
0.312 inches nut thread
Thread Size
0.375 inches stud thread
Surface Finish
100.0 microinches stud thd
Surface Finish
40.0 microinches nut thd
Material
Steel comp 8630 or steel comp 8740 or steel comp 4130
Material Specification
Ams 6280 assn standard 1st material response or ams 6322 assn standard 2nd material response or ams 6324 assn standard 2nd material response or ams 6370 assn standard 3rd material response
Surface Treatment
Cadmium
Surface Treatment Specification
Ams 2400 assn standard single treatment response
Style Designator
Stepped
Thread Series Designator
Unf nut thread
Thread Series Designator
Uns stud thread
P61388 Series Parts

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P61388-1 Cross Reference