5305-01-342-8549

Find complete technical information, availability, and procurement data for: 5305-01-342-8549
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-342-8549

Item Name Code

06672

Assigment Date

07/31/1991 (34 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, 0.302 inches minimum and 0.322 inches maximum fastener length, 3a thread class, patch or pellet or strip threads locking feature

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
Fastener Length: 0.302 inches minimum and 0.322 inches maximum
Head Style: headless (setscrew)
Locking Feature: patch or pellet or strip threads
Point Style: cone
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.125 inches nominal
Thread Quantity Per Inch: 28
Hardness Rating: 45.0 rockwell c minimum and 53.0 rockwell c maximum fastener
Material: plastic polyamide (nylon) locking featuresteel comp 4032 or steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740 fastener
Surface Treatment: cadmium and chromate fastener
Surface Treatment Document And Classification: qq-p-416,ty2 cl 3 fed spec single treatment response fastener
Thread Series Designator: unf

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
402512437	Setscrew
MS51974-114	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-342-8549?

The FSCG of the NSN 5305-01-342-8549 is 5305

Does the NSN 5305-01-342-8549 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-342-8549 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 5305-01-342-8549 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-342-8549 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 5305-01-342-8549 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Wed, Jul 31, 1991