A634-4

Comprehensive specifications and application details for: A634-4 Sleeve Bearing.

Summary

Explore detailed summary information for bearing: A634-4. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
A634-4
Federal Supply Classification
3120 Unmounted Plain Bearings
(NSN) National Stock Number
3120-00-728-6055
Item Name Code
13205
Federal Item Identification Guide
A045A0
Assigment Date
01/01/1961

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.

0.4950 inches minimum and 0.5050 inches maximum overall length, 30.0 rockwell c minimum and 70.0 rockwell c maximum overall hardness rating, square all corners corner shape, 0.6270 inches minimum and 0.6280 inches maximum body outside diameter, 0.5010 inches minimum and 0.5020 inches maximum body inside diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-728-6055 . 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
0.4950 inches minimum and 0.5050 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 3120-00-728-6055 is used in place of the following discontinued or alternate items:

NSN Name Date
3120-00-287-6820 No Name Available 06/18/2013
3120-00-629-9729 No Name Available 04/01/2008
3120-00-679-1462 No Name Available 08/09/1972
3120-01-237-0788 No Name Available 09/01/1997

Frequently Asked Questions

Find quick answers to common questions about bearing: A634-4. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-728-6055?
The FSCG of the NSN 3120-00-728-6055 is 3120
Does the NSN 3120-00-728-6055 have a Schedule B code assigned?
Yes, the Schedule B code is 8482997090
Does NSN 3120-00-728-6055 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 3120-00-728-6055 contain precious materials?
Item does not contain precious metal.
Does NSN 3120-00-728-6055 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 3120-00-728-6055 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Sun, Jan 1, 1961

Price & Availability

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