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National Stock Number: 4820-00-011-5590
Federal Supply Class: 4820
National Item Identification Number: 000115590
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:
68-13-102 | 98391 | ARKWIN INDUSTRIES, INC. |
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Techincal Specification:
BODY OUTSIDE DIAMETER | 0.343 INCHES NOMINAL | FLANGE DIAMETER | 0.871 INCHES MINIMUM AND 0.873 INCHES MAXIMUM | FLANGE SEAT TO DISK END HEIGHT | 0.484 INCHES NOMINAL | HARDNESS RATING | 28.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL | MATERIAL | STEEL COMP 416 OVERALL | PROPRIETARY CHARACTERISTICS | PACS | SEAL ACCOMMODATION TYPE | GROOVED | SEATING SURFACE SHAPE | FLAT | SPECIAL FEATURES | 4 RELIEF HOLES | UNDER FLANGE HEIGHT | 0.522 INCHES NOMINAL |
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