1881B21 Sleeve Bearing

Comprehensive specifications and application details for: 1881B21 Sleeve Bearing.

Summary

Explore detailed summary information for bearing: 1881B21. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 1881B21
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-01-185-7287
Item Name Code: 13205
Federal Item Identification Guide: A045A0
Assigment Date: 08/03/1984

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.

square left flange body corner corner shape, square left flange outside right corner corner shape, chamfered inside left corner corner shape, 3.3149 inches minimum and 3.3166 inches maximum body outside diameter, 3.1190 inches minimum and 3.1210 inches maximum body inside diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-185-7287 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter: 3.1190 inches minimum and 3.1210 inches maximum
Body Outside Diameter: 3.3149 inches minimum and 3.3166 inches maximum
Corner Shape: chamfered inside left corner
Corner Shape: square left flange body corner
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside right corner
Corner Shape: square outside right corner
Flange Outside Diameter: 3.8750 inches nominal
Flange Width: 0.0890 inches minimum and 0.0900 inches maximum
Lubricant Accommodation Style: grooved spiral circular
Overall Length: 2.61925 inches nominal
Material: copper alloy 630 overall
Style Designator: solid, external flange one end
Surface Finish: 32.0 microinches outside diameter surface of body
Surface Treatment: cadmium outside diameter surface of body
Surface Treatment: cadmium right end surface of left flange

Frequently Asked Questions

Find quick answers to common questions about bearing: 1881B21. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-185-7287?: The FSCG of the NSN 3120-01-185-7287 is 3120

Does the NSN 3120-01-185-7287 have a Schedule B code assigned?: Yes, the Schedule B code is 8482997090

Does NSN 3120-01-185-7287 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 3120-01-185-7287 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-01-185-7287 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.