5305-00-841-6490

Find complete technical information, availability, and procurement data for: 5305-00-841-6490
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-841-6490

Item Name Code

18257

Assigment Date

01/01/1962 (64 years ago)

2.250 inches minimum and 2.562 inches maximum thread length, 2.860 inches minimum and 3.000 inches maximum fastener length, 2a thread class, hexagon head style, right-hand thread direction

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: 2.250 inches minimum and 2.562 inches maximum
Fastener Length: 2.860 inches minimum and 3.000 inches maximum
Head Style: hexagon
Head Height: 0.591 inches minimum and 0.627 inches maximum
Width Between Flats: 1.469 inches minimum and 1.500 inches maximum
Hole Diameter: 0.125 inches nominal
Nominal Thread Diameter: 1.000 inches
Hole Quantity: 1
Hole Type: drilled
Thread Quantity Per Inch: 12
Minimum Tensile Strength: 115000 pounds per square inch
Hardness Rating: 22.0 rockwell c minimum and 32.0 rockwell c maximum overall
Minimum Yield Strength: 78000 pounds per square inch
Hole Configuration Style: hexagon flats
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

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
MS51096-213	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-841-6490?

The FSCG of the NSN 5305-00-841-6490 is 5305

Does the NSN 5305-00-841-6490 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-841-6490 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 5305-00-841-6490 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-841-6490 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 5305-00-841-6490 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962