5305-01-591-8231

Find complete technical information, availability, and procurement data for: 5305-01-591-8231
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-591-8231

Item Name Code

18257

Assigment Date

02/11/2011 (15 years ago)

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.

1.250 inches nominal thread length, 2.250 inches nominal fastener length, 2a thread class, right-hand thread direction, hexagon head style

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: 1.250 inches nominal
Fastener Length: 2.250 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
Part Name Assigned By Controlling Agency: screw cap hex head
Special Features: material is medium carbon alloy steel, grade 8
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
J2295J429C2R08-N36G8	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-591-8231?

The FSCG of the NSN 5305-01-591-8231 is 5305

Does the NSN 5305-01-591-8231 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-591-8231 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 5305-01-591-8231 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-591-8231 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 5305-01-591-8231 was assigned to the Federal Catalog?

It was assigned 15 years ago, on Fri, Feb 11, 2011