5305-01-431-7556

Find complete technical information, availability, and procurement data for: 5305-01-431-7556
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-431-7556

Item Name Code

18257

Assigment Date

05/17/1996 (30 years ago)

A rigid or flexible item of various shapes attached to a structure for the purpose of providing access for inspection, service, replacement of components and/or adjustments or mounting operations. It is designed to be attached by means of bolt holes, slots, mounting ears, tabs, and the like. To permit access, the mounted cover requires partial or complete removal. It may include an observation window. For items permanently attached by hinges and the like, see door, access (as modified). Excludes:all covers not specifically designed to provide access for the purposes listed above.

hexagon head style, 0.736 inches minimum and 0.750 inches maximum width between flats, 3.750 inches nominal fastener length, 2a thread class, 0.302 inches minimum and 0.323 inches maximum head height

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
Fastener Length: 3.750 inches nominal
Head Style: hexagon
Head Height: 0.302 inches minimum and 0.323 inches maximum
Width Between Flats: 0.736 inches minimum and 0.750 inches maximum
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 13
Material: steel overall
Thread Series Designator: unc

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
167-6404602 FIND 23	Hexagon Head Cap Screw
211057765	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-431-7556?

The FSCG of the NSN 5305-01-431-7556 is 5305

Does the NSN 5305-01-431-7556 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-431-7556 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 5305-01-431-7556 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-431-7556 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 5305-01-431-7556 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Fri, May 17, 1996