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National Stock Number:
3120-01-277-0400
Federal Supply Class:
3120
National Item Identification Number:
012770400
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:
| 5363358 PIECE 8 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 5363406 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| BORE INSIDE DIAMETER | 4.2485 INCHES MINIMUM AND 4.2495 INCHES MAXIMUM | | CASEHARDENING INDICATOR | NOT CASEHARDENED | | CHAMFER/RADIUS OF OUTSIDE CORNER | 0.250 IN. RADIUS | | COUNTERBORE DIAMETER | 4.750 INCHES MINIMUM AND 4.751 INCHES MAXIMUM | | COUNTERBORE DEPTH | 0.500 INCHES NOMINAL | | FACE WIDTH | 3.000 INCHES NOMINAL | | OUTSIDE DIAMETER | 6.000 INCHES NOMINAL | | MATERIAL | STEEL COMP 4340 | | METALLIC HARDNESS RATING | 45.0 MINIMUM ROCKWELL C AND 50.0 MAXIMUM ROCKWELL C | | SPECIAL FEATURES | COUNTERBORED BOTH ENDS | | STYLE DESIGNATOR | PLAIN, COUNTERBORED | | SURFACE TREATMENT | PAINT |
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