5305-01-271-4344

Find complete technical information, availability, and procurement data for: 5305-01-271-4344
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-271-4344

Item Name Code

06672

Assigment Date

01/25/1988 (38 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.

0.365 inches minimum and 0.385 inches maximum fastener length, headless (setscrew) head style, 0.365 inches minimum and 0.385 inches maximum thread length, 3a thread class, 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 Class: 3a
Thread Direction: right-hand
Thread Length: 0.365 inches minimum and 0.385 inches maximum
Fastener Length: 0.365 inches minimum and 0.385 inches maximum
Head Style: headless (setscrew)
Point Style: pointless
Internal Drive Style: slot
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 40
Material: steel corrosion resisting or steel comp 303 or steel comp 303se overall
Material Document And Classification: astma 582 assn std 1st material response or astma 581 assn std 2nd material response or astma 581 assn std 3rd material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: uns

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
808569-4	Setscrew
965808-4	Setscrew
APR429-4	Setscrew
FS2052-4	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-271-4344?

The FSCG of the NSN 5305-01-271-4344 is 5305

Does the NSN 5305-01-271-4344 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-271-4344 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 5305-01-271-4344 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-271-4344 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 5305-01-271-4344 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Mon, Jan 25, 1988