2012B31

Comprehensive specifications and application details for: 2012B31 Sleeve Bearing.

Summary

Explore detailed summary information for bearing: 2012B31. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
2012B31
Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-01-169-6438
Item Name Code
13205
Federal Item Identification Guide
A045A0
Assigment Date
01/12/1984

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 outside right corner corner shape, square left flange body corner corner shape, chamfered outside right corner corner shape, 3.4960 inches minimum and 3.4980 inches maximum body outside diameter, 3.0050 inches minimum and 3.0070 inches maximum body inside diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-169-6438 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter
3.0050 inches minimum and 3.0070 inches maximum
Body Outside Diameter
3.4960 inches minimum and 3.4980 inches maximum
Corner Shape
chamfered outside right 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 left corner
Corner Shape
square inside right corner
Flange Outside Diameter
4.6300 inches nominal
Flange Width
0.1500 inches nominal
Overall Length
0.9400 inches nominal
Material Document And Classification
qq-a-225/9 comp t73 fed spec single material response or qq-a-200/11 comp t73 or t73510 or t73511 fed spec single material response outer layer
Material
aluminum alloy 7075 outer layer
Material
plastic inner layer
Surface Finish
32.0 microinches inside diameter surface of body
Surface Treatment
anodize and dichromate inside diameter surface of body
Surface Treatment
anodize and dichromate outside diameter surface of body
Surface Treatment
anodize and dichromate right end surface of body
Surface Treatment
anodize and dichromate right end surface of left flange
Surface Treatment
paint left end surface of body and flange
Surface Treatment
paint outside diameter surface of flange

Frequently Asked Questions

Find quick answers to common questions about bearing: 2012B31. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-169-6438?
The FSCG of the NSN 3120-01-169-6438 is 3120
Does the NSN 3120-01-169-6438 have a Schedule B code assigned?
Yes, the Schedule B code is 8482997090
Does NSN 3120-01-169-6438 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 3120-01-169-6438 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-01-169-6438 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.
When the NSN 3120-01-169-6438 was assigned to the Federal Catalog?
It was assigned 41 years ago, on Thu, Jan 12, 1984

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