5305-01-121-0344

Find complete technical information, availability, and procurement data for: 5305-01-121-0344
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-121-0344

Item Name Code

16282

Assigment Date

10/29/1981 (44 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

3a thread class, 0.783 inches minimum and 0.875 inches maximum thread length, right-hand thread direction, flat chamfer head style, 0.845 inches minimum and 0.875 inches maximum fastener 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: 0.783 inches minimum and 0.875 inches maximum
Fastener Length: 0.845 inches minimum and 0.875 inches maximum
Head Style: flat chamfer
Head Diameter: 0.303 inches minimum and 0.312 inches maximum
Head Height: 0.185 inches minimum and 0.190 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.156 inches minimum and 0.158 inches maximum
Thread Quantity Per Inch: 32
Material: iron alloy 660 overall
Material Document And Classification: ams5731 assn std single material response or ams5737 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unrf
Specification/Standard Data: 80205-nas1351 professional/industrial association standard

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-01-647-8297	No Name Available	02/01/2020

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
10115088	Socket Head Cap Screw
A07744	Socket Head Cap Screw
NAS1351N3-14	Socket Head Cap Screw
NAS1351N3-14LB	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-121-0344?

The FSCG of the NSN 5305-01-121-0344 is 5305

Does the NSN 5305-01-121-0344 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-121-0344 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 5305-01-121-0344 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-121-0344 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 5305-01-121-0344 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Thu, Oct 29, 1981