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National Stock Number:
3120-01-253-9118
Federal Supply Class:
3120
National Item Identification Number:
012539118
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:
| 1395AS258-2 | 05606 | GENERAL DYNAMICS-OTS, INC. | | 1395AS258-2 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| BORE INSIDE DIAMETER | 8.29 MILLIMETERS MINIMUM AND 8.31 MILLIMETERS MAXIMUM | | CASEHARDENING INDICATOR | CASEHARDENED | | CHAMFER/RADIUS OF OUTSIDE CORNER | 1.5 MM MIN TO 2.1 MM MAX RADIUS | | FACE WIDTH | 6.78 MILLIMETERS MINIMUM AND 6.94 MILLIMETERS MAXIMUM | | MATERIAL | STEEL,QQ-T-570,TYPE H11,OR AMS 6487 COMP H11 | | PROPRIETARY CHARACTERISTICS | PACS | | METALLIC HARDNESS RATING | 87.0 MINIMUM ROCKWELL SUPERFICIAL 15-N AND 89.0 MAXIMUM ROCKWELL SUPERFICIAL 15-N | | OUTSIDE DIAMETER | 38.15 MILLIMETERS MINIMUM AND 38.25 MILLIMETERS MAXIMUM | | SPECIAL FEATURES | NICKEL PLATING PER QQ-N-290; SILVER COATING PER QQ-S-365 TYPE I,TYPE II,OR TYPE III | | STYLE DESIGNATOR | PLAIN |
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