5305-01-539-0643

Find complete technical information, availability, and procurement data for: 5305-01-539-0643
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-539-0643

Item Name Code

18257

Assigment Date

04/10/2006 (20 years ago)

An inline or cartridge type item designed to control the flow of fluids within a closed system. Excludes:items actuated by a predetermined pressure and/or temperature, items designed for use with breathing gasses, or those designed to vent or calibrate fluids.

0.750 inches minimum and 1.000 inches maximum thread length, hexagon head style, right-hand thread direction, 2a thread class, 3.250 inches nominal 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: 2a
Thread Direction: right-hand
Thread Length: 0.750 inches minimum and 1.000 inches maximum
Fastener Length: 3.250 inches nominal
Head Style: hexagon
Head Height: 0.156 inches nominal
Width Between Flats: 0.438 inches nominal
End Item Identification: 2510-01-533-9110, armor kit, d7g
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 150000 pounds per square inch
Part Name Assigned By Controlling Agency: grade 8 zinc-plated alloy steel hex head cap screw
Special Features: partially threaded;rockwell hardness c33-c39
Color: yellow overall
Material: steel overall
Surface Treatment: zinc alloy overall
Thread Series Designator: unc

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
91257A555	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-539-0643?

The FSCG of the NSN 5305-01-539-0643 is 5305

Does the NSN 5305-01-539-0643 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-539-0643 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 5305-01-539-0643 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-539-0643 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 5305-01-539-0643 was assigned to the Federal Catalog?

It was assigned 20 years ago, on Mon, Apr 10, 2006