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National Stock Number:
4820-01-506-1977
Federal Supply Class:
4820
National Item Identification Number:
015061977
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:
| 4384536 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-4384536-35B-86 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 803-4384536-35B-86 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B164 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A494 GR. -30C ASSN STD SINGLE MATERIAL RESPONSE SEAT | | MATERIAL | NICKEL ALLOY SEAT | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAME ASSIGNED BY CONTROLLING AGENCY IS SEAT RING (NEEDLE) | | SEAT ANGLE IN DEG | 15.000 NOMINAL | | SEAT RADIUS | 0.2656 INCHES NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | TAPER MAJOR DIAMETER | 0.5313 INCHES NOMINAL | | TAPER MINOR DIAMETER | 0.4375 INCHES NOMINAL |
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