5740311

View detailed technical data, stock status, and sourcing information for: 5740311
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-154-7174

Item Name Code

13211

Assigment Date

05/30/1983 (43 years ago)

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.

round center hole shape style, 72.0 rockwell superficial 15-t minimum outer layer hardness rating, 3.2800 inches nominal outside diameter, 2.3350 inches nominal diameter, groove left side lubrication feature

Product Characteristics

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

Outside Diameter: 3.2800 inches nominal
Center Hole Shape Style: round
Diameter: 2.3350 inches nominal
Hardness Rating: 72.0 rockwell superficial 15-t minimum outer layer
Lubrication Feature: groove left side
Lubrication Feature: groove right side
Special Features: 4 recessed keys on od,plating may be on bronze surface only
Material: copper alloy outer layer
Material: steel comp 1015 or steel comp 1005 inner layer
Material Document And Classification: sae 799 assn std single material response or sae 794 assn std single material response outer layer
Material Document And Classification: sae assn std all material responses or aisi assn std all material responses inner layer
Surface Treatment: lead alloy overall
Test Data Document: "11862-8645076 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."

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
24241242	Thrust Washer Bearing
3120PL0740045	Thrust Washer Bearing
5740311	Thrust Washer Bearing
8626372	Thrust Washer Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-154-7174?

The FSCG of the NSN 3120-01-154-7174 is 3120

Does the NSN 3120-01-154-7174 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105008

Does NSN 3120-01-154-7174 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 3120-01-154-7174 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-154-7174 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 3120-01-154-7174 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Mon, May 30, 1983