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		                        | National Stock Number:
 3120-00-185-1909
 
 Federal Supply Class:
 3120
 
 National Item Identification Number:
 001851909
 
 Description:
 ROLLER,LINEAR-ROTARY MOTION
 
 Detail:
 A cylindrical body having a centrally located hole to accommodate a pin or shaft for attachment to a push rod guide, yoke, rocker arm, turntable, or rail. The item provides a rolling contact with the face of a valve stem, or the lobes of a cam ring or camshaft on engines, fuel injection pumps, latches, turntables, parallel bearing surfaces requiring a roller support, and the like. Excludes BEARING, ROLLER, CYLINDRICAL; ROLLER, ELECTRICAL SWITCH; and friction bearings. See also CAM FOLLOWER, NEEDLE BEARING.
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 Manufacturer Information:
 
 | 140-33555 | 43999 | THE BOEING COMPANY | 
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 Techincal Specification:
 
 | BORE INSIDE DIAMETER | 0.391 INCHES NOMINAL |  | CASEHARDENING INDICATOR | NOT CASEHARDENED |  | FACE WIDTH | 0.687 INCHES NOMINAL |  | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-79,TYPE PBG MIL SPEC SINGLE MATERIAL RESPONSE |  | MATERIAL | PAPER AND PLASTIC PHENOLIC |  | OUTSIDE DIAMETER | 0.625 INCHES NOMINAL |  | STYLE DESIGNATOR | PLAIN | 
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