3176207-C-261

View detailed technical data, stock status, and sourcing information for: 3176207-C-261
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-071-1308

Item Name Code

16282

Assigment Date

01/30/1979 (47 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also bolt, ribbed neck.

fillister head style, 1.000 inches nominal fastener length, 1.000 inches nominal thread length, right-hand thread direction, 3a 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: 3a
Thread Direction: right-hand
Thread Length: 1.000 inches nominal
Fastener Length: 1.000 inches nominal
Head Style: fillister
Head Diameter: 0.735 inches minimum and 0.750 inches maximum
Head Height: 0.492 inches minimum and 0.500 inches maximum
Locking Feature: patch threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.500 inches
Width Across Flats: 0.375 inches nominal
Thread Quantity Per Inch: 13
Minimum Tensile Strength: 24100 pounds per square inch
Material: steel overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: qq-z-325,type 2,cl 3 fed spec single treatment response 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
3176207-C-261	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-071-1308?

The FSCG of the NSN 5305-01-071-1308 is 5305

Does the NSN 5305-01-071-1308 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-071-1308 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 5305-01-071-1308 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-071-1308 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 5305-01-071-1308 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Tue, Jan 30, 1979