QB79055-4

Comprehensive specifications and application details for: QB79055-4 Sleeve Bearing.

Summary

Explore detailed summary information for bearing: QB79055-4. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
QB79055-4
Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-00-891-8887
Item Name Code
13205
Federal Item Identification Guide
A045A0
Assigment Date
01/25/1967

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.

0.5010 inches minimum and 0.5020 inches maximum body inside diameter, 30.0 rockwell c minimum and 70.0 rockwell c maximum overall hardness rating, 0.6200 inches minimum and 0.6300 inches maximum overall length, 0.6270 inches minimum and 0.6280 inches maximum body outside diameter, square all corners corner shape

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-891-8887 . Find dimensions, materials, tolerances, performance characteristics, etc.

Body Inside Diameter
0.5010 inches minimum and 0.5020 inches maximum
Body Outside Diameter
0.6270 inches minimum and 0.6280 inches maximum
Corner Shape
square all corners
Hardness Rating
30.0 rockwell c minimum and 70.0 rockwell c maximum overall
Overall Length
0.6200 inches minimum and 0.6300 inches maximum
Material Document And Classification
mil-b-5687,ty 1,comp a or b mil spec single material response overall
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

Replaces

The NSN 3120-00-891-8887 is used in place of the following discontinued or alternate items:

NSN Name Date
3120-00-516-2063 No Name Available 07/02/1974
3120-01-079-4758 No Name Available 08/01/1982
3120-01-079-4759 No Name Available 06/01/1988

Frequently Asked Questions

Find quick answers to common questions about bearing: QB79055-4. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-891-8887?
The FSCG of the NSN 3120-00-891-8887 is 3120
Does the NSN 3120-00-891-8887 have a Schedule B code assigned?
Yes, the Schedule B code is 8482997090
Does NSN 3120-00-891-8887 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 3120-00-891-8887 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-00-891-8887 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 3120-00-891-8887 was assigned to the Federal Catalog?
It was assigned 58 years ago, on Wed, Jan 25, 1967

Price & Availability

Fill out the form to get pricing and availability details for the bearing: QB79055-4

Popular Bearings

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

T67856
3120-01-569-7921
Sleeve Bearing
T680-801
3110-00-042-8560
Airframe Ball Bearing
T69352
3120-01-343-1101
Sleeve Bushing
T69363
3120-01-343-1120
Thrust Washer Bearing
T69364
3120-01-343-1118
Thrust Washer Bearing
T697
3110-00-100-0285
Tapered Roller Cone and Rollers
T7-11P2
3110-01-105-1929
Annular Ball Bearing
T700130
3120-01-676-1891
Sleeve Bushing
T700131
3120-01-676-1889
Sleeve Bushing
T702-800
3110-01-287-0192
Duplex Ball Bearing
T703
3120-00-525-8673
Thrust Washer Bearing
T7035
3110-00-144-8983
Annular Ball Bearing
T7038
3110-00-144-8988
Annular Ball Bearing
T7039
3110-00-144-8989
Annular Ball Bearing
T70436
3120-01-197-2340
Sleeve Bearing