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National Stock Number:
4820-01-250-8593
Federal Supply Class:
4820
National Item Identification Number:
012508593
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:
| 1332 | 55378 | TRAC REGULATOR CO., INC. | | 1332-00 | 55378 | TRAC REGULATOR CO., INC. |
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Techincal Specification:
| BODY INSIDE DIAMETER | 1.123 INCHES MINIMUM AND 1.125 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 1.500 INCHES NOMINAL | | FLANGE DIAMETER | 2.120 INCHES MINIMUM AND 2.125 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 1.171 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-288A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | SPECIAL FEATURES | THREE GROOVES 90 DEG BY 0.015 IN. DEEP ONE END;OTHER END ONE GROOVES 0.062 IN. RADIUS;AND 1.625-18UNEF-3ATHD TO ROOT DIA 1.555 IN. | | STYLE DESIGNATOR | PLAIN FLANGED | | UNDER FLANGE HEIGHT | 0.641 INCHES NOMINAL |
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