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National Stock Number:
4820-00-923-9990
Federal Supply Class:
4820
National Item Identification Number:
009239990
Description:
SEAT,VALVE
Detail:
A replaceable item designed to provide a circular stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see INSERT, ENGINE VALVE SEAT.
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Manufacturer Information:
| 2J0918 | 11083 | CATERPILLAR INC | | 2J918 | 11083 | CATERPILLAR INC |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.719 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 0.875 INCHES NOMINAL | | FLANGE DIAMETER | 2.562 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.312 INCHES NOMINAL | | HARDNESS RATING | 68.0 ROCKWELL SUPERFICIAL 30-N MINIMUM OVERALL AND 73.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM OVERALL | | MATERIAL | STEEL OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | SPECIAL FEATURES | 63 MICOROINCH FINISH ON ID OF BORE,125 MICROINCH FINISH ON FLANGE END FACE | | SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | STYLE DESIGNATOR | PLAIN FLANGED | | UNDER FLANGE HEIGHT | 0.938 INCHES NOMINAL |
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