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National Stock Number:
4820-01-020-9880
Federal Supply Class:
4820
National Item Identification Number:
010209880
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:
| 134B509FY | 03502 | GENERAL ELECTRIC CO NAVAL AND DRIVE TURBINE SYSTEMS DEPT | | B708E01A | 03502 | GENERAL ELECTRIC CO NAVAL AND DRIVE TURBINE SYSTEMS DEPT |
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Techincal Specification:
| BODY OUTSIDE DIAMETER | 2.046 INCHES MINIMUM AND 2.062 INCHES MAXIMUM | | BODY STEPPED INSIDE DIAMETER | 1.125 INCHES NOMINAL FIRST STEP | | BODY STEPPED INSIDE DIAMETER | 1.451 INCHES NOMINAL SECOND STEP | | FLANGE DIAMETER | 2.6260 INCHES MINIMUM AND 2.6265 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 1.437 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-N-6710,COND E,FINISH 4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY OVERALL | | SEAT RADIUS | 0.337 INCHES NOMINAL | | STYLE DESIGNATOR | PLAIN FLANGED | | UNDER FLANGE HEIGHT | 0.482 INCHES NOMINAL |
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