A1-1-4NL90-1-253

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-013-7326

Item Name Code

15934

Assigment Date

01/01/1961 (65 years ago)

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. Excludes:insulator, washer and thrust type washers.

0.250 inches nominal shoulder height, 0.062 inches nominal material thickness, 2.368 inches minimum and 2.370 inches maximum outside diameter, 1.630 inches minimum and 1.633 inches maximum hole diameter, 1.751 inches nominal shoulder 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: 1.630 inches minimum and 1.633 inches maximum
Shoulder Diameter: 1.751 inches nominal
Outside Diameter: 2.368 inches minimum and 2.370 inches maximum
Shoulder Height: 0.250 inches nominal
Material Thickness: 0.062 inches nominal
Style Designator: shouldered

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
063-07N0-04	Shouldered Washer
54402	Shouldered Washer
A-1-1/4NL90-1	Shouldered Washer
A-1-1/4NL90-1-2 53	Shouldered Washer
A1-1-4NL90-1-253	Shouldered Washer

FAQs

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

What is the FSCG of the NSN 5310-00-013-7326?

The FSCG of the NSN 5310-00-013-7326 is 5310

Does NSN 5310-00-013-7326 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 5310-00-013-7326 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-013-7326 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 5310-00-013-7326 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961