18257-004

View detailed technical data, stock status, and sourcing information for: 18257-004
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-606-1408

Item Name Code

18257

Assigment Date

05/09/2012 (14 years ago)

A two electrode semiconductor device having an asymmetrical voltage - current characteristic. May or may not include mounting hardware and/or heatsink. Excludes:light emitting diode and semiconductor device,photo. For items containing material such as selenium and copper oxide, see recifier, metallic.

right-hand thread direction, 0.875 inches nominal fastener length, 0.250 inches nominal thread diameter, unc thread series designator, 20 thread quantity per inch

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Direction: right-hand
Fastener Length: 0.875 inches nominal
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
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
18257-004	Hexagon Head Cap Screw
5305PL0671078	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-606-1408?

The FSCG of the NSN 5305-01-606-1408 is 5305

Does NSN 5305-01-606-1408 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 5305-01-606-1408 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-606-1408 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 5305-01-606-1408 was assigned to the Federal Catalog?

It was assigned 14 years ago, on Wed, May 9, 2012