5305-01-644-2898

Find complete technical information, availability, and procurement data for: 5305-01-644-2898
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-644-2898

Item Name Code

18257

Assigment Date

04/29/2015 (11 years ago)

A rectangular or cylindrical periscope, usually positioned in a holder, or mount within an armored vehicle. It is used to observe terrain, near and distant targets, and the like. It may also be linked to gun-training mechanisms for integration of movement for fire control purposes.

right-hand thread direction, 2a thread class, 0.750 inches nominal thread length, 0.750 inches nominal fastener length, hexagon head style

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 nominal
Fastener Length: 0.750 inches nominal
Head Style: hexagon
Head Height: 0.323 inches maximum
Width Between Flats: 0.750 inches maximum
End Item Identification: 2320-01-595-3994
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 13
Part Name Assigned By Controlling Agency: screw cap hex
Material: steel 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
12543065-008	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-644-2898?

The FSCG of the NSN 5305-01-644-2898 is 5305

Does the NSN 5305-01-644-2898 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-644-2898 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 5305-01-644-2898 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-644-2898 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 5305-01-644-2898 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Wed, Apr 29, 2015