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		                        | National Stock Number:
 3120-01-486-4295
 
 Federal Supply Class:
 3120
 
 National Item Identification Number:
 014864295
 
 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:
 
 | 122-7312139 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | 122-7312139 PC 45 | 53711 | NAVAL SEA SYSTEMS COMMAND | 
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 Techincal Specification:
 
 | BORE INSIDE DIAMETER | 2.499 INCHES MINIMUM AND 2.500 INCHES MAXIMUM |  | CASEHARDENING INDICATOR | NOT CASEHARDENED |  | CHAMFER/RADIUS OF INSIDE CORNER | 0.125 IN. RADIUS |  | CHAMFER/RADIUS OF OUTSIDE CORNER | 0.125 IN. RADIUS |  | FACE WIDTH | 3.000 INCHES NOMINAL |  | MATERIAL | STEEL |  | OUTSIDE DIAMETER | 7.000 INCHES NOMINAL |  | STYLE DESIGNATOR | PLAIN | 
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