277B-1-8-F-3

View detailed technical data, stock status, and sourcing information for: 277B-1-8-F-3
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-392-8413

Item Name Code

15934

Assigment Date

07/08/1994 (32 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.

0.125 inches nominal material thickness, 4.530 inches nominal outside diameter, 3.530 inches nominal hole diameter, 0.750 inches nominal shoulder height, 3.780 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: 3.530 inches nominal
Shoulder Diameter: 3.780 inches nominal
Outside Diameter: 4.530 inches nominal
Shoulder Height: 0.750 inches nominal
Material Thickness: 0.125 inches nominal
Material: plastic polyamide (nylon) overall
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
277B-1-8-F-3	Shouldered Washer

FAQs

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

What is the FSCG of the NSN 5310-01-392-8413?

The FSCG of the NSN 5310-01-392-8413 is 5310

Does the NSN 5310-01-392-8413 have a Schedule B code assigned?

Yes, the Schedule B code is 3926904500

Does NSN 5310-01-392-8413 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 5310-01-392-8413 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-392-8413 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 5310-01-392-8413 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Fri, Jul 8, 1994