5305-01-491-9451

Find complete technical information, availability, and procurement data for: 5305-01-491-9451
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-491-9451

Item Name Code

18257

Assigment Date

11/07/2001 (24 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

26.0 millimeters nominal thread length, hexagon head style, 56.5 millimeters nominal fastener length, 6.17 millimeters minimum and 6.63 millimeters maximum head height, right-hand thread direction

Product Characteristics

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

Thread Direction: right-hand
Thread Length: 26.0 millimeters nominal
Fastener Length: 56.5 millimeters nominal
Head Style: hexagon
Head Height: 6.17 millimeters minimum and 6.63 millimeters maximum
Width Between Flats: 15.73 millimeters minimum and 16.00 millimeters maximum
End Item Identification: 2320014476343
Nominal Thread Diameter: 10.0 millimeters
Thread Pitch In Millimeters: 1.5
External Thread Tolerance Class: 6h
Material: steel overall
Material Document And Classification: astm f568 assn std single material response overall
Thread Series Designator: m

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
12414309-044	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-491-9451?

The FSCG of the NSN 5305-01-491-9451 is 5305

Does the NSN 5305-01-491-9451 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-491-9451 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 5305-01-491-9451 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-491-9451 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 5305-01-491-9451 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Wed, Nov 7, 2001