1902988

View detailed technical data, stock status, and sourcing information for: 1902988
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-281-5021

Item Name Code

13393

Assigment Date

01/01/1963 (63 years ago)

0.028 inches minimum and 0.034 inches maximum thickness, 0.194 inches minimum and 0.198 inches maximum hole diameter, round peripheral shape style, round center hole shape style, rectangular cross-sectional shape style

Product Characteristics

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

Cross-Sectional Shape Style: rectangular
Hole Diameter: 0.194 inches minimum and 0.198 inches maximum
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.028 inches minimum and 0.034 inches maximum
Overall Diameter: 0.428 inches minimum and 0.448 inches maximum
Material: steel comp 1010 overall
Material Document And Classification: sae assn std single material response overall
Surface Treatment: zinc overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-363-3500	No Name Available	01/01/1963
5310-00-418-4974	No Name Available	01/01/1983

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
16A7686	Flat Washer
1902988	Flat Washer
1907036	Flat Washer
361917	Flat Washer
5310002815021	Flat Washer
834231	Flat Washer
A063947	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-00-281-5021?

The FSCG of the NSN 5310-00-281-5021 is 5310

Does the NSN 5310-00-281-5021 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-281-5021 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 5310-00-281-5021 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-281-5021 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 5310-00-281-5021 was assigned to the Federal Catalog?

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