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National Stock Number:
4820-01-323-1721
Federal Supply Class:
4820
National Item Identification Number:
013231721
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:
| 3201871-003 | 11243 | COSMODYNE, LLC | | 3201871-3 | 11243 | COSMODYNE, LLC | | 3201871-3CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |
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Techincal Specification:
| SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 30.000 NOMINAL | | STYLE DESIGNATOR | PLAIN FLANGED | | UNDER FLANGE HEIGHT | 0.500 INCHES NOMINAL | | BODY INSIDE DIAMETER | 4.000 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 5.505 INCHES NOMINAL | | CRITICALITY CODE JUSTIFICATION | ZZZY | | FLANGE DIAMETER | 6.750 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.090 INCHES NOMINAL | | MATERIAL | STEEL COMP 304 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
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