5305-00-724-6840

Find complete technical information, availability, and procurement data for: 5305-00-724-6840
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-724-6840

Item Name Code

18257

Assigment Date

01/01/1960 (66 years ago)

4.406 inches minimum and 4.500 inches maximum fastener length, right-hand thread direction, hexagon head style, 2a thread class, 1.374 inches minimum and 1.562 inches maximum thread 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: 1.374 inches minimum and 1.562 inches maximum
Fastener Length: 4.406 inches minimum and 4.500 inches maximum
Head Style: hexagon
Head Height: 0.348 inches minimum and 0.371 inches maximum
Width Between Flats: 0.798 inches minimum and 0.812 inches maximum
Nominal Thread Diameter: 0.562 inches
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 120000 pounds per square inch
Hardness Rating: 25.0 rockwell c minimum and 34.0 rockwell c maximum overall
Material: steel overall
Material Document And Classification: sae gr 5 assn std single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 3 fed spec all treatment responses overall
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-550-0311	No Name Available	08/11/1967

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
1C972	Hexagon Head Cap Screw
MS90726-150	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-724-6840?

The FSCG of the NSN 5305-00-724-6840 is 5305

Does the NSN 5305-00-724-6840 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-724-6840 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 5305-00-724-6840 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-724-6840 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 5305-00-724-6840 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960