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National Stock Number:
4820-01-073-5849
Federal Supply Class:
4820
National Item Identification Number:
010735849
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:
| 2620-902 | 96169 | ELECTRIC BOAT CORPORATION | | 2620-902 ASSYC1-2INPC4 | 96169 | ELECTRIC BOAT CORPORATION | | 803-2177934 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 803-2177934-REV.C-3XX-18 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 8032177934-X3XX-18 | 53711 | NAVAL SEA SYSTEMS COMMAND | | SS845-1889587 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | SS845-1889587 ASSYC1-2INPC4 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.471 INCHES NOMINAL | | FLANGE DIAMETER | 0.937 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.122 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 CLASS A FED SPEC SINGLE MATERIAL RESPONSE OR QQ-N-281 CLASS B FED SPEC SINGLE MATERIAL RESPONSE OR QQ-N-288 COMP A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY OVERALL | | NOMINAL THREAD SIZE | 0.766 INCHES SINGLE THREADED PORTION | | SEAT ANGLE IN DEG | 15.000 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD LENGTH | 0.222 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 24 SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.316 INCHES NOMINAL |
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