542-521-76 PIECE 55 Thrust Washer Bearing

Comprehensive specifications and application details for: 542-521-76 PIECE 55 Thrust Washer Bearing.

Summary

Explore detailed summary information for bearing: 542-521-76 PIECE 55. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 542-521-76 PIECE 55
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-239-3601
Item Name Code: 13211
Federal Item Identification Guide: A045A0
Assigment Date: 08/28/1986

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes:straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

qq-c-390 fed spec all material responses overall material document and classification, 2.5000 inches nominal diameter, 4.0000 inches nominal outside diameter, copper alloy 910 or copper alloy 932 or copper alloy 934 or copper alloy 938 or copper alloy 940 or copper alloy 943 overall material, 0.1250 inches nominal overall thickness

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-239-3601 . Find dimensions, materials, tolerances, performance characteristics, etc.

Diameter: 2.5000 inches nominal
Outside Diameter: 4.0000 inches nominal
Overall Thickness: 0.1250 inches nominal
Material Document And Classification: qq-c-390 fed spec all material responses overall
Material: copper alloy 910 or copper alloy 932 or copper alloy 934 or copper alloy 938 or copper alloy 940 or copper alloy 943 overall

Replaces

The NSN 3120-01-239-3601 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-01-275-8650	No Name Available	12/01/1992

Frequently Asked Questions

Find quick answers to common questions about bearing: 542-521-76 PIECE 55. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-239-3601?: The FSCG of the NSN 3120-01-239-3601 is 3120

Does the NSN 3120-01-239-3601 have a Schedule B code assigned?: Yes, the Schedule B code is 8482105008

Does NSN 3120-01-239-3601 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 3120-01-239-3601 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-01-239-3601 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.