1776043-2

View detailed technical data, stock status, and sourcing information for: 1776043-2
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-018-7261

Item Name Code

13393

Assigment Date

03/30/1976 (50 years ago)

A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. 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.

rectangular cross-sectional shape style, 0.261 inches minimum and 0.272 inches maximum hole diameter, round peripheral shape style, round center hole shape style, 0.022 inches minimum and 0.027 inches maximum thickness

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: 0.261 inches minimum and 0.272 inches maximum
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.022 inches minimum and 0.027 inches maximum
Overall Diameter: 0.480 inches minimum and 0.520 inches maximum
Material: steel comp 316 overall
Material Document And Classification: aisi assn std single material response or qq-s-766 fed spec single material response overall
Surface Treatment: passivate overall

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
1776043-2	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-01-018-7261?

The FSCG of the NSN 5310-01-018-7261 is 5310

Does the NSN 5310-01-018-7261 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-018-7261 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 5310-01-018-7261 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-018-7261 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 5310-01-018-7261 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Tue, Mar 30, 1976