98752R1

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-059-4261

Item Name Code

13393

Assigment Date

01/01/1963 (63 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

0.063 inches nominal thickness, rectangular cross-sectional shape style, 0.2813 inches nominal hole diameter, round center hole shape style, round peripheral 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: 0.2813 inches nominal
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.063 inches nominal
Overall Diameter: 0.9375 inches nominal
Material: steel comp 1010 or steel comp 1015 or steel comp 1016 or steel comp 1018 or steel comp 1019 or steel comp 1020 overall
Material Document And Classification: astm a108 assn std all material responses overall
Surface Treatment: zinc and dichromate overall
Nondefinitive Spec/Std Data: a type

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
1729W205	Flat Washer
6403TA	Flat Washer
7414384	Flat Washer
98722R1	Flat Washer
98752R1	Flat Washer
FC14768	Flat Washer
Z-1729W205	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-00-059-4261?

The FSCG of the NSN 5310-00-059-4261 is 5310

Does the NSN 5310-00-059-4261 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-059-4261 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 5310-00-059-4261 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-059-4261 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 5310-00-059-4261 was assigned to the Federal Catalog?

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