3120-00-405-4921 ROLLER,LINEAR-ROTARY MOTION Index 5910-00-405-4923 CAPACITOR,FIXED,PAPER DIELECTRIC

National Stock Number:
3120-00-405-4922

Federal Supply Class:
3120

National Item Identification Number:
004054922

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.


Manufacturer Information:
253157410001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
253157453711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
BORE INSIDE DIAMETER0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM
CASEHARDENING INDICATORNOT CASEHARDENED
FACE WIDTH0.240 INCHES MINIMUM AND 0.245 INCHES MAXIMUM
OUTSIDE DIAMETER0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
MATERIALSTEEL
METALLIC HARDNESS RATING45.0 MINIMUM ROCKWELL C AND 50.0 MAXIMUM ROCKWELL C
SPECIAL FEATURESMAGNETIC PARTICLE INSPECTION MIL-I-6868
STYLE DESIGNATORPLAIN


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