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National Stock Number:
4820-00-050-7672
Federal Supply Class:
4820
National Item Identification Number:
000507672
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:
| 81136 | 81982 | HYDRO-AIRE AEROSPACE CORP |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 0.215 INCHES MINIMUM AND 0.225 INCHES MAXIMUM | | FLANGE DIAMETER | 0.328 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.184 INCHES MINIMUM AND 0.196 INCHES MAXIMUM | | FSC APPLICATION DATA | MANIFOLD,HYDRAULIC SYSTEM ACCESSORIES,ACFT | | HARDNESS RATING | 55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL | | MATERIAL | STEEL OVERALL | | SPECIAL FEATURES | 6 BLEED HOLES | | SEATING SURFACE SHAPE | FLAT | | STYLE DESIGNATOR | PLAIN FLANGED | | SURFACE TREATMENT | PASSIVATE OVERALL | | UNDER FLANGE HEIGHT | 0.117 INCHES MINIMUM AND 0.127 INCHES MAXIMUM |
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