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National Stock Number:
4820-01-058-0914
Federal Supply Class:
4820
National Item Identification Number:
010580914
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:
| 255422 ITEM 56 3/4IN | 43689 | HUNTINGTON INGALLS INC | | 2620-902X4ASSYC1IN-PC20 | 96169 | ELECTRIC BOAT CORPORATION | | 2621-902 ITEM 56 3/4IN | 96169 | ELECTRIC BOAT CORPORATION | | 54387 | 63686 | THE WALWORTH COMPANY | | 803-2177934 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-2177934-B521-18 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 803-2177934-X51-18 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 845-1889582ASSYC1IN-PC20 | 53711 | NAVAL SEA SYSTEMS COMMAND | | C38477 | 63686 | THE WALWORTH COMPANY | | SS845-1889582 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION | | SEAT ANGLE IN DEG | 15.000 NOMINAL | | FLANGE DIAMETER | 1.562 INCHES NOMINAL | | THREAD LENGTH | 0.253 INCHES NOMINAL SINGLE THREADED PORTION | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD QUANTITY PER INCH | 20 SINGLE THREADED PORTION | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | FLANGE SEAT TO DISK END HEIGHT | 0.153 INCHES NOMINAL | | THREAD CLASS | 3A SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.378 INCHES NOMINAL | | NOMINAL THREAD SIZE | 1.375 INCHES SINGLE THREADED PORTION | | SEATING SURFACE SHAPE | ANGULAR | | MATERIAL | NICKEL ALLOY OVERALL | | BODY INSIDE DIAMETER | 0.815 INCHES NOMINAL |
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