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National Stock Number: 4820-01-172-8243
Federal Supply Class: 4820
National Item Identification Number: 011728243
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:
486 | 55378 | TRAC REGULATOR CO., INC. | 486-00 | 55378 | TRAC REGULATOR CO., INC. |
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Techincal Specification:
MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-288A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | NICKEL ALLOY OVERALL | PROPRIETARY CHARACTERISTICS | PACS | NOMINAL THREAD SIZE | 4.500 INCHES SINGLE THREADED PORTION | SEATING SURFACE SHAPE | FLAT | SPECIAL FEATURES | PRODUCT: 486-00 / DESCRIPTION. SEAT RING 3" TYPE 'F', CAST MONEL. | THREAD QUANTITY PER INCH | 16 SINGLE THREADED PORTION | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION |
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