21750A Sleeve Bearing

Comprehensive specifications and application details for: 21750A Sleeve Bearing.

Summary

Explore detailed summary information for bearing: 21750A. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 21750A
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-058-2031
Item Name Code: 13205
Federal Item Identification Guide: A045A0
Assigment Date: 06/06/1967

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.

1.0020 inches minimum and 1.0030 inches maximum body outside diameter, 0.7580 inches minimum and 0.7600 inches maximum body inside diameter, 3.4668 inches minimum and 3.5312 inches maximum overall length, copper alloy overall material, square all corners corner shape

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-058-2031 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter: 0.7580 inches minimum and 0.7600 inches maximum
Body Outside Diameter: 1.0020 inches minimum and 1.0030 inches maximum
Corner Shape: square all corners
Overall Length: 3.4668 inches minimum and 3.5312 inches maximum
Material: copper alloy overall
Style Designator: solid, plain, no outside flanges
Surface Finish: 160.0 microinches left end surface of body
Surface Finish: 160.0 microinches right end surface of body
Surface Finish: 32.0 microinches inside diameter surface of body
Surface Finish: 63.0 microinches outside diameter surface of body

Frequently Asked Questions

Find quick answers to common questions about bearing: 21750A. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-058-2031?: The FSCG of the NSN 3120-00-058-2031 is 3120

Does the NSN 3120-00-058-2031 have a Schedule B code assigned?: Yes, the Schedule B code is 8482997090

Does NSN 3120-00-058-2031 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 3120-00-058-2031 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-058-2031 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.