Shouldered Stud

Model / MPN: 57991-507-1 | NSN: 5307-00-458-2426

A headless fastener not exceeding 12 inches (304.8 mm) in length, threaded externally on both ends with threads of the same diameter. All or part of the unthreaded section has a cross-sectional diameter greater than the stud size plus 0.020 inches (0.508 mm). It may be thread relieved. See also stud, locked in.

Product Details

NATO Stock Number

5307-00-458-2426

Sold in multiples of

1 EA

DEMIL

DEMIL/MLI

Thread Class

3a nut thread

Thread Class

3a stud thread

Thread Direction

Right-hand stud thread

Thread Length

0.272 inches stud thread

Thread Length

0.500 inches nut thread and 0.620 inches nut thread

Thread Length

0.500 inches and 0.620 inches nut thread

Shoulder Length

0.050 inches

Overall Length

2.216 inches

Nut End Shank Length

0.088 inches

Distance Across Flats

Between 0.302 inches and 0.312 inches

Thready Qty Per Inch (tpi)

32 nut thread

Thready Qty Per Inch (tpi)

32 stud thread

Hardness Rating

320.0 vickers or firth diamond pyramid

Thread Size

0.164 inches nut thread

Thread Size

0.164 inches stud thread

Criticality Code Justification

Feat

Stud End Shank Length

1.186 inches

Stud End Shank Diameter

0.164 inches

Surface Finish

125.0 microinches

Nut End Shank Diameter

Between 0.120 inches and 0.130 inches

Material

Steel

Nuclear Hardness Critical Feature

Hardened

Style Designator

Shouldered

Thread Series Designator

Unjc nut thread

Thread Series Designator

Unjc stud thread

57991 Series Parts

Pricing and Availability

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Shouldered Stud

Pricing and Availability

Certified Quality Assurance

57991-507-1 Cross Reference