3020-00-629-5049 GEAR,ENGINE CRANKSH Index 2990-00-629-5055 MUFFLER,EXHAUST

National Stock Number:
2815-00-629-5054

Federal Supply Class:
2815

National Item Identification Number:
006295054

Description:
INSERT,ENGINE VALVE SEAT

Detail:
A METAL RING DESIGNED TO PROVIDE A SEATING SURFACE FOR A VALVE, POPPET, ENGINE IT IS MADE OF SPECIAL HIGH-GRADE ALLOY METAL THAT CAN WITHSTAND HIGH OPERATING TEMPERATURES. FOR FULID VALVES, SEE SEAT, VALVE.


Manufacturer Information:
4703213841TIFFIN PARTS, L.L.C.


Techincal Specification:
STYLE DESIGNATORPLAIN
OVERALL HEIGHT0.248 INCHES MINIMUM AND
0.252 INCHES MAXIMUM
BODY OUTSIDE DIAMETER1.881 INCHES MINIMUM AND
1.885 INCHES MAXIMUM
BODY INSIDE DIAMETER1.620 INCHES MINIMUM AND
1.630 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER1.630 INCHES MAXIMUM SECOND STEP
MATERIALSTEEL OVERALL
HARDNESS RATING26.0 ROCKWELL C MINIMUM BODY
36.0 ROCKWELL C MAXIMUM FACE
SEATING SURFACE SHAPEFLAT


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