5305-01-243-0744

Find complete technical information, availability, and procurement data for: 5305-01-243-0744
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-243-0744

Item Name Code

16282

Assigment Date

10/22/1986 (39 years ago)

A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes:screw, assembled washer.

0.436 inches minimum and 0.498 inches maximum thread length, flat countersunk head style, 3a thread class, 0.625 inches nominal fastener length, 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: 0.436 inches minimum and 0.498 inches maximum
Fastener Length: 0.625 inches nominal
Head Style: flat countersunk
Head Diameter: 0.359 inches minimum and 0.411 inches maximum
Locking Feature: patch threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.125 inches nominal
Thread Quantity Per Inch: 32
Hardness Rating: 36.0 rockwell c minimum and 45.0 rockwell c maximum overall
Countersink Angle: 80.0 degrees minimum and 84.0 degrees maximum
Material: steel overall
Surface Treatment: zinc and chromate overall
Surface Treatment Document And Classification: astm b633 assn std single treatment response overall
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
3176209-C-056	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-243-0744?

The FSCG of the NSN 5305-01-243-0744 is 5305

Does the NSN 5305-01-243-0744 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-243-0744 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 5305-01-243-0744 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-243-0744 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 5305-01-243-0744 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Wed, Oct 22, 1986