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National Stock Number:
4820-01-186-4721
Federal Supply Class:
4820
National Item Identification Number:
011864721
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:
| 6820556-6 | 63005 | ROLLS-ROYCE CORPORATION | | 6820556-6 | 73342 | ALLISON TRANSMISSION INC |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.344 INCHES MINIMUM AND 0.346 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 0.665 INCHES MINIMUM AND 0.666 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY OVERALL | | OVERALL HEIGHT | 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM | | SEATING SURFACE SHAPE | RADIAL | | SEAT RADIUS | 0.218 INCHES NOMINAL | | STYLE DESIGNATOR | PLAIN |
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