5S44-21-1AB

View detailed technical data, stock status, and sourcing information for: 5S44-21-1AB
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-998-6500

Item Name Code

18421

Assigment Date

11/27/1967 (58 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.

washer securing device type, stud shank turnlock stud shank style, 0.412 inches nominal grip length, flat countersunk turnlock stud head style, 0.299 inches minimum and 0.313 inches maximum diameter

Product Characteristics

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

Grip Length: 0.412 inches nominal
Diameter: 0.299 inches minimum and 0.313 inches maximum
Securing Device Type: washer
Turnlock Stud Shank Style: stud shank
Turnlock Stud Head Style: flat countersunk
Material Accommodated Thickness: 0.275 inches minimum and 0.289 inches maximum
Drive Type: cross recess
Stud Shank Major Diameter: 0.122 inches minimum and 0.128 inches maximum
Material: steel overall
Material Document And Classification: mil-c-13924 cl 3 mil spec single material response overall
Surface Treatment: oxide film overall
Surface Treatment Document And Classification: mil-c-13924 mil spec single treatment response 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
579R618H46	Turnlock Fastener Stud
5S44-21-1AB	Turnlock Fastener Stud

FAQs

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

What is the FSCG of the NSN 5325-00-998-6500?

The FSCG of the NSN 5325-00-998-6500 is 5325

Does the NSN 5325-00-998-6500 have a Schedule B code assigned?

Yes, the Schedule B code is 9607190000

Does NSN 5325-00-998-6500 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 5325-00-998-6500 contain precious materials?

Precious metal content is unknown

Does NSN 5325-00-998-6500 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 5325-00-998-6500 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Mon, Nov 27, 1967