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National Stock Number:
4820-00-036-0455
Federal Supply Class:
4820
National Item Identification Number:
000360455
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:
| 052990-004 | 11672 | CRANE CO CRANE VALVE AND PARTS DIV | | AL52990-189PC4 | 11672 | CRANE CO CRANE VALVE AND PARTS DIV |
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Techincal Specification:
| BODY INSIDE DIAMETER | 27.000 INCHES NOMINAL | | OVERALL HEIGHT | 1.500 INCHES NOMINAL | | MATERIAL | COPPER OVERALL | | NOMINAL THREAD SIZE | 28.500 INCHES SINGLE THREADED PORTION | | SPECIAL FEATURES | 5.0 DEG CLEARANCE ONTOP TO MAINTAIN 0.125 IN. SEAT W | | SEATING SURFACE SHAPE | FLAT | | STYLE DESIGNATOR | PLAIN THREADED | | THREAD CLASS | 2A SINGLE THREADED PORTION | | THREAD LENGTH | 1.250 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 8 SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION |
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