642AS0790-4

View detailed technical data, stock status, and sourcing information for: 642AS0790-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-133-5849

Item Name Code

14218

Assigment Date

06/16/1982 (44 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.

full hard heat treatment, 0.202 inches minimum and 0.222 inches maximum outside diameter, 0.115 inches minimum and 0.125 inches maximum hole diameter, 0.019 inches minimum and 0.031 inches maximum material thickness, copper alloy 510 overall material

Product Characteristics

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

Hole Diameter: 0.115 inches minimum and 0.125 inches maximum
Outside Diameter: 0.202 inches minimum and 0.222 inches maximum
Material Thickness: 0.019 inches minimum and 0.031 inches maximum
Heat Treatment: full hard
Material: copper alloy 510 overall
Material Document And Classification: qq-b-750,hard fed spec single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 2 fed spec single treatment response overall
Style Designator: split helical-right hand

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
177013-8	Lock Washer
642AS0790-4	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-01-133-5849?

The FSCG of the NSN 5310-01-133-5849 is 5310

Does the NSN 5310-01-133-5849 have a Schedule B code assigned?

Yes, the Schedule B code is 7415210000

Does NSN 5310-01-133-5849 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 5310-01-133-5849 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-133-5849 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 5310-01-133-5849 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Wed, Jun 16, 1982