5310-00-237-6781

Find complete technical information, availability, and procurement data for: 5310-00-237-6781
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-237-6781

Item Name Code

14218

Assigment Date

05/28/1973 (53 years ago)

86.0 rockwell b minimum and 92.0 rockwell b maximum hardness rating, 0.670 inches minimum and 0.700 inches maximum outside diameter, copper alloy overall material, 0.032 inches minimum and 0.040 inches maximum material thickness, 0.256 inches minimum and 0.295 inches maximum hole diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Hole Diameter: 0.256 inches minimum and 0.295 inches maximum
Outside Diameter: 0.670 inches minimum and 0.700 inches maximum
Material Thickness: 0.032 inches minimum and 0.040 inches maximum
Hardness Rating: 86.0 rockwell b minimum and 92.0 rockwell b maximum
Material: copper alloy overall
Material Document And Classification: qq-b-750 temper extra hard fed spec single material response overall
Surface Treatment: oxide film overall
Surface Treatment Document And Classification: mil-f-495 mil spec single treatment response overall
Style Designator: flat external and internal teeth

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
SM-B-745222	Lock Washer
SMB745222-2	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-00-237-6781?

The FSCG of the NSN 5310-00-237-6781 is 5310

Does the NSN 5310-00-237-6781 have a Schedule B code assigned?

Yes, the Schedule B code is 7415210000

Does NSN 5310-00-237-6781 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 5310-00-237-6781 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-237-6781 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 5310-00-237-6781 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Mon, May 28, 1973