K21-500 Sleeve Bearing

Comprehensive specifications and application details for: K21-500 Sleeve Bearing.

Summary

Explore detailed summary information for bearing: K21-500. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: K21-500
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-025-7828
Item Name Code: 13205
Federal Item Identification Guide: A045A0
Assigment Date: 08/09/1976

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.

3.8265 inches nominal body outside diameter, 3.6250 inches nominal body inside diameter, square all corners corner shape, 2.2230 inches maximum overall length, copper alloy intermediate layer material

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-025-7828 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter: 3.6250 inches nominal
Body Outside Diameter: 3.8265 inches nominal
Corner Shape: square all corners
Overall Length: 2.2230 inches maximum
Material: copper alloy intermediate layer
Material: lead alloy inner layer
Material: steel outer layer
Style Designator: segmented, plain, no outside flanges

Frequently Asked Questions

Find quick answers to common questions about bearing: K21-500. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-025-7828?: The FSCG of the NSN 3120-01-025-7828 is 3120

Does the NSN 3120-01-025-7828 have a Schedule B code assigned?: Yes, the Schedule B code is 8482997090

Does NSN 3120-01-025-7828 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 3120-01-025-7828 contain precious materials?: Precious metal content is unknown

Does NSN 3120-01-025-7828 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.