376-01149 ITEM 157

View detailed technical data, stock status, and sourcing information for: 376-01149 ITEM 157
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-430-4703

Item Name Code

18257

Assigment Date

04/30/1996 (30 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

hexagon head style, 0.428 inches minimum and 0.438 inches maximum width between flats, 0.750 inches nominal fastener length, 0.150 inches minimum and 0.163 inches maximum head height, 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
Fastener Length: 0.750 inches nominal
Head Style: hexagon
Head Height: 0.150 inches minimum and 0.163 inches maximum
Width Between Flats: 0.428 inches minimum and 0.438 inches maximum
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Material: steel corrosion resisting overall
Material Document And Classification: sae j429 gr5 assn std single material response overall
Surface Treatment: zinc 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
021-14285	Hexagon Head Cap Screw
376-01149 ITEM 157	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-430-4703?

The FSCG of the NSN 5305-01-430-4703 is 5305

Does the NSN 5305-01-430-4703 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-430-4703 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 5305-01-430-4703 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-430-4703 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 5305-01-430-4703 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Tue, Apr 30, 1996