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National Stock Number:
4820-00-019-2634
Federal Supply Class:
4820
National Item Identification Number:
000192634
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:
| 7074-7 | 4U537 | P S MANUFACTURING INC | | 7074-7 | 60029 | WOODWARD HRT, INC. |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.388 INCHES MINIMUM AND 0.398 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 0.417 INCHES MINIMUM AND 0.418 INCHES MAXIMUM | | BODY STEPPED INSIDE DIAMETER | 0.240 INCHES MINIMUM FIRST STEP AND 0.260 INCHES MAXIMUM FIRST STEP | | FLANGE DIAMETER | 0.434 INCHES MINIMUM AND 0.435 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.165 INCHES NOMINAL | | HARDNESS RATING | 58.0 ROCKWELL C MINIMUM OVERALL AND 62.0 ROCKWELL C MAXIMUM OVERALL | | MATERIAL | STEEL COMP 440A OVERALL | | III FSC APPLICATION DATA | VALVE,PLUG,NONPOWERED | | PROPRIETARY CHARACTERISTICS | PACS | | SEAL ACCOMMODATION TYPE | RECESSED | | SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | STYLE DESIGNATOR | PLAIN FLANGED | | SURFACE TREATMENT | PASSIVATE OVERALL | | UNDER FLANGE HEIGHT | 0.250 INCHES NOMINAL |
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