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National Stock Number:
4820-01-545-9903
Federal Supply Class:
4820
National Item Identification Number:
015459903
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:
| 803-4384536-35XX-86 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| STYLE DESIGNATOR | PLAIN FLANGED | | FLANGE DIAMETER | 0.869 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 0.734 INCHES NOMINAL | | BODY INSIDE DIAMETER | 0.438 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.094 INCHES NOMINAL | | UNDER FLANGE HEIGHT | 0.313 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY SEAT | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B164, ASTM A494 ASSN STD SINGLE MATERIAL RESPONSE OR | | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT | | SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | NONDEFINITIVE SPEC/STD DATA | MATERIAL M30C GRADE | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SEAT RING (NEEDLE) |
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