3120-01-178-2123 Sleeve Bearing

Comprehensive specifications and application details for NSN: 3120-01-178-2123.

Summary

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Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-178-2123
Item Name Code: 13205
Federal Item Identification Guide: A045A0
Assigment Date: 05/02/1984

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also bushing, sleeve; spacer, sleeve; and washer (as modified). Excludes:pin, hollow.

2.2400 inches minimum and 2.2450 inches maximum overall length, square all corners corner shape, no. 3,fscm 71129 mfr ref single material response inner layer material document and classification, 3.7490 inches minimum and 3.7500 inches maximum body outside diameter, 3.2580 inches minimum and 3.2600 inches maximum body inside diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-178-2123 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter: 3.2580 inches minimum and 3.2600 inches maximum
Body Outside Diameter: 3.7490 inches minimum and 3.7500 inches maximum
Corner Shape: square all corners
Overall Length: 2.2400 inches minimum and 2.2450 inches maximum
Material Document And Classification: no. 3,fscm 71129 mfr ref single material response inner layer
Material Document And Classification: no. 9,fscm 71129 mfr ref 1st material response or sae assn std 2nd material response outer layer
Material: copper alloy or copper alloy 937 outer layer
Material: graphite inner layer
Style Designator: solid, plain, no outside flanges
Surface Finish: 32.0 microinches inside diameter surface of body
Surface Finish: 63.0 microinches left end surface of body
Surface Finish: 63.0 microinches outside diameter surface of body
Surface Finish: 63.0 microinches right end surface of body

Related Bearings

Explore the various bearing models associated with this NSN. Click on any bearing below to view detailed technical data, performance ratings, and application guidelines.

Part Number	Name
633A906 PIECE 4	Sleeve Bearing

Frequently Asked Questions

Find quick answers to common questions about bearing: 3120-01-178-2123. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-178-2123?: The FSCG of the NSN 3120-01-178-2123 is 3120

Does the NSN 3120-01-178-2123 have a Schedule B code assigned?: Yes, the Schedule B code is 8482997090

Does NSN 3120-01-178-2123 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 3120-01-178-2123 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-01-178-2123 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.