CPP2028A001B81

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-019-0670

Item Name Code

14218

Assigment Date

01/01/1963 (63 years ago)

A washer, usually round, with a centrally-located hole. Its edges and two bearing surfaces are designed in such a way that applied pressure brings into play the spring tension and/or frictional locking principle that materially resists any tendency toward turning. It may be made of one or two pieces.

0.168 inches minimum and 0.176 inches maximum hole diameter, copper alloy overall material, 0.018 inches minimum and 0.023 inches maximum material thickness, multiple launch rocket system (mlrs) end item identification, 0.325 inches minimum and 0.340 inches maximum outside 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: 0.168 inches minimum and 0.176 inches maximum
Outside Diameter: 0.325 inches minimum and 0.340 inches maximum
Material Thickness: 0.018 inches minimum and 0.023 inches maximum
End Item Identification: multiple launch rocket system (mlrs)
Material: copper alloy overall
Material Document And Classification: qq-b-750 fed spec single material response overall
Style Designator: flat internal teeth
Nondefinitive Spec/Std Data: a type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-271-7443	No Name Available	01/01/1960
5310-00-637-5332	No Name Available	01/01/1960
5310-00-880-9207	No Name Available	11/01/1983

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
089-8017-51	Lock Washer
106-53800	Lock Washer
12Z3010-5	Lock Washer
190670	Lock Washer
1908-00	Lock Washer
2190-0009	Lock Washer
373-3030-000	Lock Washer
43W5741-137	Lock Washer
5310-019-0670	Lock Washer
5310PL0840252	Lock Washer
5310PL1759090	Lock Washer
73A8	Lock Washer
A25M3507	Lock Washer
CPP2028A001B81	Lock Washer
MS35333-106	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-00-019-0670?

The FSCG of the NSN 5310-00-019-0670 is 5310

Does the NSN 5310-00-019-0670 have a Schedule B code assigned?

Yes, the Schedule B code is 7415210000

Does NSN 5310-00-019-0670 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 5310-00-019-0670 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-019-0670 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 5310-00-019-0670 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963