5305-01-334-7891

Find complete technical information, availability, and procurement data for: 5305-01-334-7891
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-334-7891

Item Name Code

06672

Assigment Date

02/28/1991 (35 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

2.120 inches nominal fastener length, right-hand thread direction, 1.240 inches nominal point length, headless (setscrew) head style, 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
Thread Direction: right-hand
Fastener Length: 2.120 inches nominal
Head Style: headless (setscrew)
Point Length: 1.240 inches nominal
Point Diameter: 0.875 inches nominal
Point Style: chamfer dog
Internal Drive Style: hexagon
Nominal Thread Diameter: 1.250 inches
Width Across Flats: 0.500 inches minimum and 0.505 inches maximum
Thread Quantity Per Inch: 7
Point Chamfer Angle: 45.0 degrees nominal
Material: titanium alloy uns r56400 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
524-6603688-VHBA-61	Setscrew
5959303-50	Setscrew
803-5959303-X-50	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-334-7891?

The FSCG of the NSN 5305-01-334-7891 is 5305

Does the NSN 5305-01-334-7891 have a Schedule B code assigned?

Yes, the Schedule B code is 8109900000

Does NSN 5305-01-334-7891 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 5305-01-334-7891 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-334-7891 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 5305-01-334-7891 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Thu, Feb 28, 1991