5305-00-964-0643

Find complete technical information, availability, and procurement data for: 5305-00-964-0643
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-964-0643

Item Name Code

18257

Assigment Date

06/06/1966 (60 years ago)

2a thread class, 1.250 inches minimum and 1.442 inches maximum thread length, 4.906 inches minimum and 5.000 inches maximum fastener length, right-hand thread direction, hexagon head style

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 minimum and 1.442 inches maximum
Fastener Length: 4.906 inches minimum and 5.000 inches maximum
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
Thread Quantity Per Inch: 13
Minimum Tensile Strength: 80000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum overall
Minimum Yield Strength: 30000 pounds per square inch
Surface Finish: 63.0 microinches threads
Material: steel comp 301 or steel comp 302 or steel comp 303 or steel comp 303f or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 308 or steel comp 309 or steel comp 309s or steel comp 310 or steel comp 310s or steel comp 314 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 323 or steel comp 324 or steel comp 347 or steel comp 348 or steel comp 385 or steel comp 384 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
MS35307-427	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-964-0643?

The FSCG of the NSN 5305-00-964-0643 is 5305

Does the NSN 5305-00-964-0643 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-964-0643 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 5305-00-964-0643 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-964-0643 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 5305-00-964-0643 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Mon, Jun 6, 1966