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National Stock Number:
4820-01-134-1331
Federal Supply Class:
4820
National Item Identification Number:
011341331
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:
| 2620-902X7 PIECE 20 1IN | 63686 | THE WALWORTH COMPANY | | 2620-902X7 PIECE 20 1IN | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.750 INCHES NOMINAL | | FLANGE DIAMETER | 1.563 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.156 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY OVERALL | | NOMINAL THREAD SIZE | 1.375 INCHES SINGLE THREADED PORTION | | SEAT ANGLE IN DEG | 75.000 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD CLASS | 2A SINGLE THREADED PORTION | | THREAD LENGTH | 0.312 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 20 SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.375 INCHES NOMINAL |
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