5305-00-639-7334

Find complete technical information, availability, and procurement data for: 5305-00-639-7334
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-639-7334

Item Name Code

18257

Assigment Date

01/01/1963 (63 years ago)

0.875 inches minimum thread length, 3a thread class, hexagon head style, 0.875 inches nominal fastener length, right-hand thread direction

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.875 inches minimum
Fastener Length: 0.875 inches nominal
Head Style: hexagon
Head Height: 0.150 inches nominal
Width Between Flats: 0.440 inches nominal
Hole Diameter: 0.062 inches nominal
Nominal Thread Diameter: 0.250 inches
Hole Quantity: 6
Hole Type: drilled
Thread Quantity Per Inch: 20
Hardness Rating: 30.0 rockwell c minimum and 35.0 rockwell c maximum overall
Hole Configuration Style: hexagon longitudinal hole
Material: steel comp 8640 overall
Material Document And Classification: sae assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: ams 2400 assn std single treatment response 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
330C889D4020C14	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-639-7334?

The FSCG of the NSN 5305-00-639-7334 is 5305

Does the NSN 5305-00-639-7334 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-639-7334 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 5305-00-639-7334 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-639-7334 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 5305-00-639-7334 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963