5305-01-612-6637

Find complete technical information, availability, and procurement data for: 5305-01-612-6637
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-612-6637

Item Name Code

18257

Assigment Date

10/17/2012 (13 years ago)

An adapter having machine threads (straight threads other than pipe or hose series) designed to accommodate a tube on one end or an unthreaded end designed to accommodate a tube. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. It is designed to join a tube or tube fitting to a boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like. See also coupling, tube and nipple, tube.

square head style, 0.500 inches nominal fastener length, 0.500 inches nominal thread length, right-hand thread direction, 2a thread class

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: 0.500 inches nominal
Fastener Length: 0.500 inches nominal
Head Style: square
Head Height: 0.196 millimeters nominal
Width Between Flats: 0.250 millimeters nominal
End Item Identification: mrap buffalo a1; mrap buffalo mk2a2
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: a28
Special Features: case hardened steel; plain cup
Material: steel overall
Surface Treatment: oil 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
0153753	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-612-6637?

The FSCG of the NSN 5305-01-612-6637 is 5305

Does the NSN 5305-01-612-6637 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-612-6637 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 5305-01-612-6637 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-612-6637 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 5305-01-612-6637 was assigned to the Federal Catalog?

It was assigned 13 years ago, on Wed, Oct 17, 2012