120240-1

View detailed technical data, stock status, and sourcing information for: 120240-1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5307 Studs

National Stock Number

5307-00-638-2748

Item Name Code

16012

Assigment Date

01/01/1963 (63 years ago)

right-hand nut thread thread direction, +0.2778 to 0.2795 inches stud thread thread pitch diameters, 0.500 inches nominal nut thread thread length, right-hand stud thread thread direction, 3a nut thread thread class

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3a nut thread
Thread Pitch Diameters: +0.2778 to 0.2795 inches stud thread
Thread Direction: right-hand nut thread
Thread Direction: right-hand stud thread
Thread Length: 0.500 inches nominal nut thread
Thread Length: 0.387 inches nominal stud thread
Locking Feature: ring, lock serrated
Overall Length: 1.500 inches nominal
Distance From Serrated Portion To Nut End: 0.938 inches nominal
Distance From Serrated Portion To Stud End: 0.562 inches nominal
Distance From Serrated Portion To End Of Stud Thread: 0.176 inches nominal
Thread Quantity Per Inch: 18 stud thread
Thread Quantity Per Inch: 28 nut thread
Nominal Thread Size: 0.250 inches nut thread
Nominal Thread Size: 0.312 inches stud thread
Material: steel comp 4130
Material Document And Classification: mil-s-6758 mil spec single material response
Surface Treatment: cadmium overall
Style Designator: locked in
Thread Series Designator: unf nut thread
Thread Series Designator: uns stud thread

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5307-00-089-1300	No Name Available	12/03/1965
5307-00-550-0878	No Name Available	07/19/1971

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
120240-1	Locked in Stud
124451	Locked in Stud
BACS21S9-15A	Locked in Stud
SF101-9SA15A	Locked in Stud

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5307-00-638-2748?

The FSCG of the NSN 5307-00-638-2748 is 5307

Does NSN 5307-00-638-2748 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5307-00-638-2748 contain precious materials?

Precious metal content is unknown

Does NSN 5307-00-638-2748 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5307-00-638-2748 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963