ASTM B 38 Sleeve Bearing

Comprehensive specifications and application details for: ASTM B 38 Sleeve Bearing.

Summary

Explore detailed summary information for bearing: ASTM B 38. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
ASTM B 38
Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-01-101-4877
Item Name Code
13205
Federal Item Identification Guide
A045A0
Assigment Date
10/01/1980

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 all corners corner shape, 1.9925 inches minimum and 2.0075 inches maximum overall length, 30.0 rockwell h minimum and 70.0 rockwell h maximum overall hardness rating, 0.7510 inches minimum and 0.7520 inches maximum body inside diameter, 1.0020 inches minimum and 1.0030 inches maximum body outside diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-101-4877 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter
0.7510 inches minimum and 0.7520 inches maximum
Body Outside Diameter
1.0020 inches minimum and 1.0030 inches maximum
Corner Shape
square all corners
Hardness Rating
30.0 rockwell h minimum and 70.0 rockwell h maximum overall
Overall Length
1.9925 inches minimum and 2.0075 inches maximum
Material Document And Classification
mil-l-15016, symbol 2190 mil spec single material response lubrication
Material
copper alloy overall
Material
oil lubricating lubrication
Style Designator
solid, plain, no outside flanges

Frequently Asked Questions

Find quick answers to common questions about bearing: ASTM B 38. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-101-4877?
The FSCG of the NSN 3120-01-101-4877 is 3120
Does the NSN 3120-01-101-4877 have a Schedule B code assigned?
Yes, the Schedule B code is 8482997090
Does NSN 3120-01-101-4877 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 3120-01-101-4877 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-01-101-4877 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 3120-01-101-4877 was assigned to the Federal Catalog?
It was assigned 46 years ago, on Wed, Oct 1, 1980

Price & Availability

Fill out the form to get pricing and availability details for the bearing: ASTM B 38

Stock Availability

This product is available in the following quantities and conditions:

New Surplus 14
New Material 216
Total 230
Availability of this item was last updated on: 07/13/2026 03:07 PM EDT. Availability may have changed since then. Request a quote for up to date pricing and availability.

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