5305-01-318-8691

Find complete technical information, availability, and procurement data for: 5305-01-318-8691
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-318-8691

Item Name Code

06672

Assigment Date

04/27/1990 (36 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

headless (setscrew) head style, right-hand thread direction, 1.720 inches nominal fastener length, 3a thread class, 1.420 inches nominal thread length

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: 1.420 inches nominal
Fastener Length: 1.720 inches nominal
Head Style: headless (setscrew)
Locking Feature: pellet threads
Point Style: full dog
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.312 inches
Width Across Flats: 0.125 inches nominal
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 34.0 rockwell c minimum and 38.0 rockwell c maximum threads
Material: plastic polyamide (nylon) locking feature
Material: steel comp 4140 fastener
Material Document And Classification: mil-s-5626 mil spec single material response fastener
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5315-00-223-9953	No Name Available	04/01/2023

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
425730	Setscrew
425730-1	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-318-8691?

The FSCG of the NSN 5305-01-318-8691 is 5305

Does the NSN 5305-01-318-8691 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-318-8691 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 5305-01-318-8691 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-318-8691 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 5305-01-318-8691 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Fri, Apr 27, 1990