Product Details | SLEEVE BEARING

3120-00-288-4999 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.

Part Alternates: 3120-00-288-4999, 00-288-4999, 3120002884999, 002884999

Bearings | Bearings, Plain, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 00-288-4999

Drawings & Photos | NSN 3120-00-288-4999


Cross Reference | NSN 3120-00-288-4999

Part Number Cage Code Manufacturer
4B21MS4-016 43999 BOEING COMPANY, THE DBA BOEING
LD137-0018-2016 43999 BOEING COMPANY, THE DBA BOEING

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Technical Data | NSN 3120-00-288-4999

Characteristic Specifications
MATERIAL STEEL OVERALL
SURFACE TREATMENT CHROMIUM OUTSIDE DIAMETER SURFACE OF BODY
STYLE DESIGNATOR 17C SOLID
OVERALL LENGTH 0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
BODY OUTSIDE DIAMETER 0.3730 INCHES MINIMUM AND 0.3735 INCHES MAXIMUM
BODY INSIDE DIAMETER 0.2495 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM
CORNER SHAPE SQUARE ALL CORNERS
SURFACE FINISH 250.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY 125.0 MICROINCHES LEFT END SURFACE OF BODY 16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY 125.0 MICROINCHES RIGHT END SURFACE OF BODY
MANUFACTURERS CODE 43999
DESIGN CONTROL REFERENCE 4B21S4-016

Restrictions/Controls & Freight Information | NSN 3120-00-288-4999

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Category Code Description
No Freight Information