5579439

View detailed technical data, stock status, and sourcing information for: 5579439
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-689-7472

Item Name Code

18257

Assigment Date

02/16/1968 (58 years ago)

0.875 inches minimum thread length, hexagon head style, 0.875 inches nominal fastener length, right-hand thread direction, 2a 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: 2a
Thread Direction: right-hand
Thread Length: 0.875 inches minimum
Fastener Length: 0.875 inches nominal
Head Style: hexagon
Head Height: 0.272 inches minimum and 0.291 inches maximum
Width Between Flats: 0.612 inches minimum and 0.625 inches maximum
Nominal Thread Diameter: 0.438 inches
Thread Quantity Per Inch: 20
Material: steel comp 302 or steel comp 303 or steel comp 304 overall
Surface Treatment: passivate overall
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-01-174-8170	No Name Available	06/01/1994

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
5305PL0773652	Hexagon Head Cap Screw
5579439	Hexagon Head Cap Screw
MS35308-384	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-689-7472?

The FSCG of the NSN 5305-00-689-7472 is 5305

Does the NSN 5305-00-689-7472 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-689-7472 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 5305-00-689-7472 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-689-7472 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 5305-00-689-7472 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, Feb 16, 1968