5342-01-309-7977

Find complete technical information, availability, and procurement data for: 5342-01-309-7977
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5342 Weapon System Hardware

National Stock Number

5342-01-309-7977

Item Name Code

53589

Assigment Date

10/23/1989 (36 years ago)

A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes:laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see gasket. For items manufactured from lubricated plastics, see bearing, washer, thrust. For items manufactured from lubricated felt, see felt, mechanical, preformed. Excludes:disk, valve; insulator washer; and shim. See also spacer, plate and spacer, sleeve.

2.375 inches maximum flange width, 1.928 inches minimum and 1.948 inches maximum shortest distance between mounting hole centers, 0.250-28 all threaded portions thread size, 2.375 inches maximum flange length, 1.928 inches minimum and 1.948 inches maximum distance between mounting hole centers

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Size: 0.250-28 all threaded portions
Distance Between Mounting Hole Centers: 1.928 inches minimum and 1.948 inches maximum
Flange Length: 2.375 inches maximum
Flange Width: 2.375 inches maximum
Shortest Distance Between Mounting Hole Centers: 1.928 inches minimum and 1.948 inches maximum
Flange Mounting Hole Diameter: 0.196 inches minimum and 0.206 inches maximum
Style Designator: round w/four-hole flange

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
MS91527-2BFD	Weapon System Resilient Mount

FAQs

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

What is the FSCG of the NSN 5342-01-309-7977?

The FSCG of the NSN 5342-01-309-7977 is 5342

Does the NSN 5342-01-309-7977 have a Schedule B code assigned?

Yes, the Schedule B code is 8710000090

Does NSN 5342-01-309-7977 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 5342-01-309-7977 contain precious materials?

Item does not contain precious metal.

Does NSN 5342-01-309-7977 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 5342-01-309-7977 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Mon, Oct 23, 1989