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National Stock Number:
4820-00-340-0853
Federal Supply Class:
4820
National Item Identification Number:
003400853
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:
| 8U8017-4 | 60029 | WOODWARD HRT, INC. |
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Techincal Specification:
| FLANGE DIAMETER | 0.684 INCHES MINIMUM AND | | 0.685 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 0.363 INCHES MINIMUM AND | | 0.367 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.372 INCHES MINIMUM AND | | 0.378 INCHES MAXIMUM | | UNDER FLANGE HEIGHT | 0.085 INCHES MINIMUM AND | | 0.100 INCHES MAXIMUM | | BODY STEPPED INSIDE DIAMETER | 0.202 INCHES MINIMUM AND | | 0.205 INCHES MAXIMUM FIRST STEP | | 0.276 INCHES MINIMUM AND | | 0.286 INCHES MAXIMUM SECOND STEP | | MATERIAL | ALUMINUM ALLOY 7075 OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | SEATING SURFACE SHAPE | FLAT | | SEAL ACCOMMODATION TYPE | RECESSED | | SPECIAL FEATURES | 2 BLEED HOLES | | FSC APPLICATION DATA | VALVE,LINEAR,DIRECTIONAL CONTROL,ACFT | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 60029 | | DESIGN CONTROL REFERENCE | 8U8017-4 |
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