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National Stock Number:
4820-00-306-4840
Federal Supply Class:
4820
National Item Identification Number:
003064840
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:
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Techincal Specification:
| STYLE DESIGNATOR | PLAIN THREADED | | OVERALL HEIGHT | 0.668 INCHES MINIMUM AND | | 0.678 INCHES MAXIMUM | | BODY INSIDE DIAMETER | 0.154 INCHES MINIMUM AND | | 0.158 INCHES MAXIMUM | | HARDNESS RATING | 53.0 ROCKWELL C MINIMUM AND | | 62.0 ROCKWELL C MAXIMUM BODY | | 53.0 ROCKWELL C MINIMUM AND | | 62.0 ROCKWELL C MAXIMUM FACE | | SEATING SURFACE SHAPE | FLAT | | SEAL ACCOMMODATION TYPE | RECESSED | | THREAD SERIES DESIGNATOR | UNC SINGLE THREADED PORTION | | NOMINAL THREAD SIZE | 0.164 INCHES SINGLE THREADED PORTION | | THREAD CLASS | 2B SINGLE THREADED PORTION | | SPECIAL FEATURES | 4 BLEED HOLES | | FSC APPLICATION DATA | VALVE,SAFETY RELIEF,NONPOWERED |
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