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National Stock Number:
3120-01-198-8761
Federal Supply Class:
3120
National Item Identification Number:
011988761
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:
| 2688416 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 2688416 | 33362 | TEC DESIGN & MANUFACTURING, INC. |
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Techincal Specification:
| BORE INSIDE DIAMETER | 0.375 INCHES MINIMUM AND 0.376 INCHES MAXIMUM | | CASEHARDENING INDICATOR | NOT CASEHARDENED | | CHAMFER/RADIUS OF OUTSIDE CORNER | 0.031 IN. BY 45 DEG CHAMFER | | FACE WIDTH | 0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.182 INCHES MINIMUM AND 1.192 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A304, GRADE 4140H ASSN STD 1ST MATERIAL RESPONSE OR OD8853, TY D, GRADE 2, CL B, COMP 4140 MIL SPEC 2ND MATERIAL RESPONSE | | MATERIAL | STEEL COMP 4140H OR STEEL COMP 4140 | | METALLIC HARDNESS RATING | 30.0 MINIMUM ROCKWELL C AND 35.0 MAXIMUM ROCKWELL C | | STYLE DESIGNATOR | PLAIN | | TEST DATA DOCUMENT | 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
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