5305-00-079-4979

Find complete technical information, availability, and procurement data for: 5305-00-079-4979
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-079-4979

Item Name Code

41756

Assigment Date

01/01/1963 (63 years ago)

A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes:screw, assembled washer.

slot internal drive style, 0.371 inches nominal width between flats, hexagon head style, 0.181 inches nominal head height, 0.500 inches nominal fastener length

Product Characteristics

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

Fastener Length: 0.500 inches nominal
Head Style: hexagon
Head Height: 0.181 inches nominal
Width Between Flats: 0.371 inches nominal
Internal Drive Style: slot
Nonmachine Thread Style: dog type (type b or c)
Nonmachine Nominal Thread Diameter: 0.250 inches
Material: steel comp 1016 or steel comp 1018 or steel comp 1019 or steel comp 1021 or steel comp 1022 or steel comp 1524 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec single treatment response overall
Nondefinitive Spec/Std Data: b type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-550-1538	No Name Available	09/01/2023
5305-00-550-1807	No Name Available	09/01/2023

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
AMF00818	Tapping Screw

FAQs

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

What is the FSCG of the NSN 5305-00-079-4979?

The FSCG of the NSN 5305-00-079-4979 is 5305

Does the NSN 5305-00-079-4979 have a Schedule B code assigned?

Yes, the Schedule B code is 7318140000

Does NSN 5305-00-079-4979 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 5305-00-079-4979 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-079-4979 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 5305-00-079-4979 was assigned to the Federal Catalog?

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