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National Stock Number:
4820-00-594-1998
Federal Supply Class:
4820
National Item Identification Number:
005941998
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:
| 1JC8956-6 | 79500 | WESTINGHOUSE ELECTRIC CORP | | 1JC8956-6 | 88657 | WESTINGHOUSE ELECTRIC CORP POWER GENERATION-TURBINE DIV | | 1JH4864PC43 | 79500 | WESTINGHOUSE ELECTRIC CORP | | 1JC8956-6 | 90099 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| STYLE DESIGNATOR | PLAIN FLANGED | | FLANGE DIAMETER | 3.042 INCHES MINIMUM AND | | 3.052 INCHES MAXIMUM | | BODY OUTSIDE DIAMETER | 2.562 INCHES MINIMUM AND | | 2.563 INCHES MAXIMUM | | BODY INSIDE DIAMETER | 1.344 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 1.245 INCHES MINIMUM AND | | 1.255 INCHES MAXIMUM | | UNDER FLANGE HEIGHT | 0.938 INCHES NOMINAL | | MATERIAL | STEEL BODY | | ROD,WELDING,SURFACING FACE | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BODY | | MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE | | SEATING SURFACE SHAPE | RADIAL | | SEAT RADIUS | 0.308 INCHES MINIMUM AND | | 0.318 INCHES MAXIMUM | | TAPER MINOR DIAMETER | 0.995 INCHES MINIMUM AND | | 1.005 INCHES MAXIMUM | | TAPER MAJOR DIAMETER | 1.344 INCHES NOMINAL | | SEAL ACCOMMODATION TYPE | GROOVED | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 90099 | | DESIGN CONTROL REFERENCE | 1JC8956-6 |
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