5305-01-678-8644

Find complete technical information, availability, and procurement data for: 5305-01-678-8644
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-678-8644

Item Name Code

18257

Assigment Date

03/01/2019 (7 years ago)

Footwear made of a suitable material or a combination of suitable materials. They may be insulated and may be equipped with an air pressure release device. They are primarily designed for protection at mean monthly temperatures of plus 14 degrees fahrenheit (minus 10 degrees celsius) to plus 68 degrees fahrenheit (plus 20 degrees celsius).

1.250 inches nominal fastener length, 1.250 inches nominal thread length, 2a thread class, 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 nominal
Fastener Length: 1.250 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
End Item Identification: 5420-01-545-7365
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 13
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum overall
Surface Finish: 63.0 microinches threads
Material: steel overall
Material Document And Classification: saej429 grade bd assn std single material response overall
Surface Treatment: aluminum and zinc overall
Surface Treatment Document And Classification: astm b633 ty 2 sc 3 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
AES01C500A25AW9M31	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-678-8644?

The FSCG of the NSN 5305-01-678-8644 is 5305

Does the NSN 5305-01-678-8644 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-678-8644 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 5305-01-678-8644 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-678-8644 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 5305-01-678-8644 was assigned to the Federal Catalog?

It was assigned 7 years ago, on Fri, Mar 1, 2019