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National Stock Number:
4820-01-128-4595
Federal Supply Class:
4820
National Item Identification Number:
011284595
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:
| 10124591 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 1D22145-1 | 18355 | THE BOEING COMPANY |
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Techincal Specification:
| STYLE DESIGNATOR | PLAIN FLANGED | | FLANGE DIAMETER | 0.673 INCHES NOMINAL | | OVERALL HEIGHT | 1.940 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 0.390 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.625 INCHES NOMINAL | | UNDER FLANGE HEIGHT | 1.315 INCHES NOMINAL | | BODY STEPPED INSIDE DIAMETER | 0.300 INCHES NOMINAL FIRST STEP | | 0.090 INCHES NOMINAL SECOND STEP | | 0.314 INCHES NOMINAL THIRD STEP | | MATERIAL | NICKEL ALLOY K-500 OVERALL | | SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | SEAL ACCOMMODATION TYPE | GROOVED |
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