3120-00-123-4021 Sleeve Bearing

Comprehensive specifications and application details for NSN: 3120-00-123-4021.

Summary

Explore detailed summary information for bearing: 3120-00-123-4021. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-123-4021
Item Name Code: 13205
Federal Item Identification Guide: A045A0
Assigment Date: 11/01/1968

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.

chamfered outside right corner corner shape, square outside left corner corner shape, 3.3900 inches minimum and 3.4000 inches maximum body outside diameter, 6 hole antirotation/lubrication type and quantity, 3.1900 inches minimum and 3.2100 inches maximum body inside diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-123-4021 . Find dimensions, materials, tolerances, performance characteristics, etc.

Antirotation/Lubrication Type And Quantity: 6 hole
Body Inside Diameter: 3.1900 inches minimum and 3.2100 inches maximum
Body Outside Diameter: 3.3900 inches minimum and 3.4000 inches maximum
Corner Shape: chamfered outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum overall
Hole Diameter: 0.2450 inches minimum and 0.2550 inches maximum first
Left Internal Flange Hole Diameter: 3.0980 inches minimum and 3.1010 inches maximum
Left Internal Flange Width: 0.1300 inches minimum and 0.1500 inches maximum
Overall Length: 1.6050 inches minimum and 1.6150 inches maximum
Material: steel comp 8740 overall
Right Internal Flange Hole Diameter: 3.1080 inches minimum and 3.1100 inches maximum
Right Internal Flange Width: 0.0600 inches minimum and 0.0700 inches maximum
Style Designator: split, plain, no outside flanges, internal flange at both ends
Surface Finish: 16.0 microinches external cylindrical surface

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
646043	Sleeve Bearing

Frequently Asked Questions

Find quick answers to common questions about bearing: 3120-00-123-4021. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-123-4021?: The FSCG of the NSN 3120-00-123-4021 is 3120

Does the NSN 3120-00-123-4021 have a Schedule B code assigned?: Yes, the Schedule B code is 8482997090

Does NSN 3120-00-123-4021 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 3120-00-123-4021 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-123-4021 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.