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National Stock Number:
4820-01-167-8422
Federal Supply Class:
4820
National Item Identification Number:
011678422
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:
| 2620-902PC25,0.500IN | 96169 | ELECTRIC BOAT CORPORATION | | 2632-903X6 PIECE 29 1/2IN | 96169 | ELECTRIC BOAT CORPORATION | | 2632-903X6PC29,0.500IN | 96169 | ELECTRIC BOAT CORPORATION | | 845-1889587PC25 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 845-1889587PC25,0.500IN | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 845-2445177PC29,0.500IN | 80064 | NAVAL SHIP SYSTEMS COMMAND | | SS 845-2445177 PIECE 29 1/2IN | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| CRITICALITY CODE JUSTIFICATION | ZZZY | | MATERIAL | NICKEL ALLOY SEAT | | NOMINAL THREAD SIZE | 0.766 INCHES SINGLE THREADED PORTION | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | THREAD LENGTH | 3.000 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 24 SINGLE THREADED PORTION |
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