5310-01-149-7791

Find complete technical information, availability, and procurement data for: 5310-01-149-7791
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-149-7791

Item Name Code

14218

Assigment Date

03/25/1983 (43 years ago)

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes:washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

steel overall material, 0.255 inches minimum and 0.263 inches maximum hole diameter, zinc overall surface treatment, 0.489 inches maximum outside diameter, 45.0 rockwell c minimum and 51.0 rockwell c maximum hardness rating

Product Characteristics

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

Hole Diameter: 0.255 inches minimum and 0.263 inches maximum
Outside Diameter: 0.489 inches maximum
Hardness Rating: 45.0 rockwell c minimum and 51.0 rockwell c maximum
Material: steel overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: g-6173-m(240),fscm 11862 mfr ref single treatment response overall
Style Designator: split helical-right hand

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-01-136-9755	No Name Available	10/01/1994
5310-01-151-7354	No Name Available	04/01/1999

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
9421423	Lock Washer
9439510	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-01-149-7791?

The FSCG of the NSN 5310-01-149-7791 is 5310

Does the NSN 5310-01-149-7791 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-01-149-7791 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 5310-01-149-7791 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-149-7791 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 5310-01-149-7791 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Fri, Mar 25, 1983