5305-01-434-4211

Find complete technical information, availability, and procurement data for: 5305-01-434-4211
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-434-4211

Item Name Code

18257

Assigment Date

07/30/1996 (29 years ago)

An item which is specifically designed to absorb, conduct or dissipate heat generated by an electrical and/or electronic component or an external source in order to prevent damage to the component. Do not use if a more specific name applies.

1.380 inches nominal fastener length, 2a thread class, right-hand thread direction, hexagon head style, 1.250 inches nominal thread 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: 1.250 inches nominal
Fastener Length: 1.380 inches nominal
Head Style: hexagon
Head Height: 0.302 inches minimum and 0.323 inches maximum
Width Between Flats: 0.736 inches minimum and 0.750 inches maximum
Nominal Thread Diameter: 0.500 inches
Hole Type: drilled
Thread Quantity Per Inch: 20
Color: yellow or bronze or olive drab overall
Material: steel uns k04100 overall
Material Document And Classification: astm a354, grade bd assn std single material response overall
Surface Treatment: zinc 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
B1821BH050F138D	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-434-4211?

The FSCG of the NSN 5305-01-434-4211 is 5305

Does the NSN 5305-01-434-4211 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-434-4211 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 5305-01-434-4211 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-434-4211 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 5305-01-434-4211 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Tue, Jul 30, 1996