5305-00-579-4420

Find complete technical information, availability, and procurement data for: 5305-00-579-4420
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-579-4420

Item Name Code

18257

Assigment Date

01/01/1963 (63 years ago)

2a thread class, 1.750 inches maximum thread length, right-hand thread direction, hexagon head style, 1.750 inches nominal fastener 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: 1.750 inches maximum
Fastener Length: 1.750 inches nominal
Head Style: hexagon
Head Height: 0.455 inches minimum and 0.483 inches maximum
Width Between Flats: 1.100 inches minimum and 1.125 inches maximum
Nominal Thread Diameter: 0.750 inches
Thread Quantity Per Inch: 10
Minimum Tensile Strength: 80000 pounds per square inch
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: qq-p-35 fed spec 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
596315	Hexagon Head Cap Screw
MS35307-186	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-579-4420?

The FSCG of the NSN 5305-00-579-4420 is 5305

Does the NSN 5305-00-579-4420 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-579-4420 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 5305-00-579-4420 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-579-4420 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 5305-00-579-4420 was assigned to the Federal Catalog?

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