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5310-01-491-4241

Find complete technical information, availability, and procurement data for: 5310-01-491-4241

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5310-01-491-4241
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-01-491-4241
Item Name Code
13393
Assigment Date
10/22/2001 (24 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.

0.136 inches minimum and 0.160 inches maximum thickness, round peripheral shape style, round center hole shape style, 0.938 inches nominal hole diameter, 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
0.938 inches nominal
Peripheral Shape Style
round
Center Hole Shape Style
round
Thickness
0.136 inches minimum and 0.160 inches maximum
Overall Diameter
1.750 inches nominal
Special Features
material;steel c1040-1050
Material
steel overall
Surface Treatment
zinc and chromate overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5310-01-481-2062 No Name Available 10/01/2013

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
98023A037 Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-01-491-4241?
The FSCG of the NSN 5310-01-491-4241 is 5310
Does the NSN 5310-01-491-4241 have a Schedule B code assigned?
Yes, the Schedule B code is 7318220000
Does NSN 5310-01-491-4241 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 5310-01-491-4241 contain precious materials?
Item does not contain precious metal.
Does NSN 5310-01-491-4241 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 5310-01-491-4241 was assigned to the Federal Catalog?
It was assigned 24 years ago, on Mon, Oct 22, 2001

Professional Distribution

Certified to meet the strict requirements of defense, aerospace, and hazardous materials distribution.

  • ITAR Registered
  • DDTC Registered
  • HAZMAT Certified
  • AS9120 Quality Standards
  • 100% Quality Inspections

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Pricing

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ITAR Registered

In Stock

This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.

New Surplus 209
New Material 7
Total 216
Availability of this item was last updated on: 06/16/2026 06:06 PM EDT. Stock levels and pricing are subject to change.

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