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National Stock Number:
4820-00-216-9017
Federal Supply Class:
4820
National Item Identification Number:
002169017
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:
| 4820PL1370263 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | C1507 | 86184 | GRISWOLD INDUSTRIES | | C3125 | 86184 | GRISWOLD INDUSTRIES | | C3125G | 86184 | GRISWOLD INDUSTRIES |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.250 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY B OVERALL | | NOMINAL THREAD SIZE | 0.875 INCHES SINGLE THREADED PORTION | | SPECIAL FEATURES | 1.000 IN. W/ACROSS FLATS ON FLANGE | | SEAT ANGLE IN DEG | 10.000 NOMINAL | | SEATING SURFACE SHAPE | ANGULAR | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD CLASS | 2A SINGLE THREADED PORTION | | THREAD LENGTH | 0.183 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNF SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.320 INCHES NOMINAL |
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