MB4020DU Sleeve Bushing

Comprehensive specifications and application details for: MB4020DU Sleeve Bushing.

Summary

Explore detailed summary information for bearing: MB4020DU. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
MB4020DU
Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-01-649-5612
Item Name Code
13206
Federal Item Identification Guide
A045A0
Assigment Date
11/03/2015

A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.

40.0 millimeters nominal body inside diameter, 20.0 millimeters nominal overall length, steel and bronze outer layer material, the dry bushing (or du bushing) is the ultimate in oilless bearing design, using lead and tetrafluoroethylene (ptfe) having excellent wear resistance which optimizes metal properties such as strength and dimensional stability. special features, du bushing part name assigned by controlling agency

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-01-649-5612 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter
40.0 millimeters nominal
Overall Length
20.0 millimeters nominal
Part Name Assigned By Controlling Agency
du bushing
Material
steel and bronze outer layer
Special Features
the dry bushing (or du bushing) is the ultimate in oilless bearing design, using lead and tetrafluoroethylene (ptfe) having excellent wear resistance which optimizes metal properties such as strength and dimensional stability.

Frequently Asked Questions

Find quick answers to common questions about bearing: MB4020DU. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-01-649-5612?
The FSCG of the NSN 3120-01-649-5612 is 3120
Does the NSN 3120-01-649-5612 have a Schedule B code assigned?
Yes, the Schedule B code is 8482997060
Does NSN 3120-01-649-5612 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 3120-01-649-5612 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-01-649-5612 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 3120-01-649-5612 was assigned to the Federal Catalog?
It was assigned 10 years ago, on Tue, Nov 3, 2015

Price & Availability

Fill out the form to get pricing and availability details for the bearing: MB4020DU

Stock Availability

This product is available in the following quantities and conditions:

New Surplus 7
Total 7
Availability of this item was last updated on: 01/27/2026 01:01 AM EST. Availability may have changed since then. Request a quote for up to date pricing and availability.

Popular Bearings

Browse our selection of high-demand, high-performance bearings:

3311540
3120-00-661-6290
Thrust Washer Bearing
3311582 ITEM 11
3110-01-160-2473
Bearing Retaining Plate
33116M
3110-01-546-3744
Tapered Roller Bearing
33117434
3120-01-284-9567
Thrust Washer Bearing
3311891
3110-01-160-2473
Bearing Retaining Plate
33118A
3120-00-682-7958
Sleeve Bearing
3311A2RS1
3110-00-156-4736
Annular Ball Bearing
3311E
3110-00-555-5336
Annular Ball Bearing
3311L1
3110-00-580-1606
Annular Ball Bearing
3311LY1A
3110-00-580-1606
Annular Ball Bearing
3311X1
3110-00-144-8548
Annular Ball Bearing
3311X1A
3110-00-144-8548
Annular Ball Bearing
3311XR1A
3110-00-580-1606
Annular Ball Bearing
3312
3110-00-554-3265
Annular Ball Bearing
3312-7077
3110-00-987-3734
Annular Ball Bearing