740255-01

View detailed technical data, stock status, and sourcing information for: 740255-01
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-251-4997

Item Name Code

18421

Assigment Date

07/11/1969 (57 years ago)

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

0.256 inches minimum and 0.270 inches maximum diameter, 0.087 inches nominal stud head height, 0.138-32 unc stud thread size and series/type designator, slotted drive type, 0.990 inches minimum and 1.010 inches maximum grip length

Product Characteristics

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

Grip Length: 0.990 inches minimum and 1.010 inches maximum
Diameter: 0.256 inches minimum and 0.270 inches maximum
Drive Type: slotted
Stud Thread Size And Series/Type Designator: 0.138-32 unc
Stud Head Height: 0.087 inches nominal
Material: steel corrosion resisting overall

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
5338945	Turnlock Fastener Stud
740255-01	Turnlock Fastener Stud
800H1	Turnlock Fastener Stud

FAQs

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

What is the FSCG of the NSN 5325-00-251-4997?

The FSCG of the NSN 5325-00-251-4997 is 5325

Does the NSN 5325-00-251-4997 have a Schedule B code assigned?

Yes, the Schedule B code is 9607190000

Does NSN 5325-00-251-4997 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 5325-00-251-4997 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-00-251-4997 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 5325-00-251-4997 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Jul 11, 1969