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National Stock Number:
4820-00-486-5647
Federal Supply Class:
4820
National Item Identification Number:
004865647
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:
| 321912 | 81982 | HYDRO-AIRE AEROSPACE CORP |
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Techincal Specification:
| STYLE DESIGNATOR | PLAIN FLANGED | | FLANGE DIAMETER | 1.743 INCHES MINIMUM AND | | 1.745 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 1.743 INCHES MINIMUM AND | | 1.745 INCHES MAXIMUM | | BODY INSIDE DIAMETER | 1.183 INCHES MINIMUM AND | | 1.193 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.140 INCHES NOMINAL | | UNDER FLANGE HEIGHT | 0.250 INCHES NOMINAL | | MATERIAL | ALUMINUM OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | SEATING SURFACE SHAPE | FLAT | | SEAL ACCOMMODATION TYPE | BEADED | | FSC APPLICATION DATA | VALVE,GATE,HYDRAULIC SYSTEM,AIRCRAFT | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 81982 | | DESIGN CONTROL REFERENCE | 321912 |
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