3120-01-280-6933

Find complete technical information, availability, and procurement data for: 3120-01-280-6933
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-280-6933

Item Name Code

13211

Assigment Date

06/13/1988 (38 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.

0.0620 inches minimum and 0.0720 inches maximum flange thickness, shouldered cross-sectional shape style, 2.9850 inches nominal outside diameter, 2.2525 inches minimum and 2.2530 inches maximum diameter, round center hole shape style

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: shouldered
Flange Thickness: 0.0620 inches minimum and 0.0720 inches maximum
Outside Diameter: 2.9850 inches nominal
Center Hole Shape Style: round
Diameter: 2.2525 inches minimum and 2.2530 inches maximum
Overall Thickness: 0.2680 inches minimum and 0.2700 inches maximum
Shank Outside Diameter: 2.5160 inches nominal
Corner Shape: chamfered first inside corner
Corner Shape: round third outside corner
Corner Shape: square first outside corner
Corner Shape: square fourth outside corner
Corner Shape: square second inside corner
Corner Shape: square second outside corner
Hardness Rating: 33.0 rockwell c minimum and 38.0 rockwell c maximum overall
Surface Finish: 20.0 microinches outside diameter surface of body
Material: steel comp e4340 overall
Material Document And Classification: mil-s-5000 mil spec single material response overall
Surface Treatment: oxide largest outside diameter
Surface Treatment: oxide right side
Surface Treatment: oxide right side of flange
Surface Treatment: oxide smallest outside diameter
Surface Treatment: oxide inside diameter surface of body
Surface Treatment Document And Classification: mil-c-13924,class 1 mil spec single treatment response inside diameter surface of body
Surface Treatment Document And Classification: mil-c-13924,class 1 mil spec single treatment response largest outside diameter
Surface Treatment Document And Classification: mil-c-13924,class 1 mil spec single treatment response right side
Surface Treatment Document And Classification: mil-c-13924,class 1 mil spec single treatment response right side of flange
Surface Treatment Document And Classification: mil-c-13924,class 1 mil spec single treatment response smallest outside diameter
Style Designator: round

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
61350-24074-101	Thrust Washer Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-280-6933?

The FSCG of the NSN 3120-01-280-6933 is 3120

Does the NSN 3120-01-280-6933 have a Schedule B code assigned?

Yes, the Schedule B code is 8482105008

Does NSN 3120-01-280-6933 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 3120-01-280-6933 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-280-6933 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 3120-01-280-6933 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Mon, Jun 13, 1988