5305-00-989-4656

Find complete technical information, availability, and procurement data for: 5305-00-989-4656
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-989-4656

Item Name Code

18257

Assigment Date

11/16/1966 (59 years ago)

right-hand thread direction, 0.563 inches nominal fastener length, hexagon head style, 0.407 inches minimum thread length, 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: 0.407 inches minimum
Fastener Length: 0.563 inches nominal
Head Style: hexagon
Head Height: 0.233 inches minimum and 0.253 inches maximum
Width Between Flats: 0.562 inches minimum and 0.563 inches maximum
Nominal Thread Diameter: 0.375 inches
Features Provided: finished head
Thread Quantity Per Inch: 16
Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 overall
Material Document And Classification: 66 fed std all material responses overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: mil-std-171 mil 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
2548285-42	Hexagon Head Cap Screw
2548285PC42	Hexagon Head Cap Screw
BUWEPSDWG254828	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-989-4656?

The FSCG of the NSN 5305-00-989-4656 is 5305

Does the NSN 5305-00-989-4656 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-989-4656 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 5305-00-989-4656 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-989-4656 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 5305-00-989-4656 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Nov 16, 1966