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National Stock Number:
4820-00-956-1977
Federal Supply Class:
4820
National Item Identification Number:
009561977
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:
| B58929 | 16712 | SIEMENS ENERGY, INC. | | DC62W | 16712 | SIEMENS ENERGY, INC. |
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Techincal Specification:
| BODY INSIDE DIAMETER | 1.500 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 1.989 INCHES MINIMUM AND 1.990 INCHES MAXIMUM | | FLANGE DIAMETER | 2.499 INCHES MINIMUM AND 2.500 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.750 INCHES NOMINAL | | SEAL ACCOMMODATION TYPE | GROOVED | | SEAT RADIUS | 0.209 INCHES MINIMUM AND 0.213 INCHES MAXIMUM | | SEATING SURFACE SHAPE | RADIAL | | UNDER FLANGE HEIGHT | 1.250 INCHES NOMINAL | | STYLE DESIGNATOR | PLAIN FLANGED | | TAPER LENGTH | 1.303 INCHES NOMINAL | | TAPER MAJOR DIAMETER | 0.791 INCHES NOMINAL | | TAPER MINOR DIAMETER | 0.562 INCHES MINIMUM AND 0.563 INCHES MAXIMUM |
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