11579774

View detailed technical data, stock status, and sourcing information for: 11579774
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-226-6740

Item Name Code

16282

Assigment Date

02/21/1986 (40 years ago)

3a thread class, right-hand thread direction, 1.250 inches nominal fastener length, 1.125 inches minimum and 1.250 inches maximum thread length, flat chamfer 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: 3a
Thread Direction: right-hand
Thread Length: 1.125 inches minimum and 1.250 inches maximum
Fastener Length: 1.250 inches nominal
Head Style: flat chamfer
Head Diameter: 0.562 inches nominal
Head Height: 0.400 inches nominal
Internal Drive Style: hexagon
End Item Identification: howitzer;howitzer, medium, towed, 155mm
Nominal Thread Diameter: 0.375 inches
Width Across Flats: 0.312 inches nominal
Thread Quantity Per Inch: 16
Material: steel overall
Surface Treatment: phosphate 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
11579774	Socket Head Cap Screw
40568	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-226-6740?

The FSCG of the NSN 5305-01-226-6740 is 5305

Does the NSN 5305-01-226-6740 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-226-6740 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 5305-01-226-6740 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-226-6740 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 5305-01-226-6740 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Fri, Feb 21, 1986