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National Stock Number:
4820-01-219-4321
Federal Supply Class:
4820
National Item Identification Number:
012194321
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:
| 51172-N | 76364 | MILWAUKEE VALVE CO, INC | | 51172-NF-180 | 76364 | MILWAUKEE VALVE CO, INC | | 51172-NP-183 | 76364 | MILWAUKEE VALVE CO, INC | | C-35833 PIECE 5 4IN | 76364 | MILWAUKEE VALVE CO, INC |
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Techincal Specification:
| BODY INSIDE DIAMETER | 3.938 INCHES NOMINAL | | FLANGE DIAMETER | 4.812 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.250 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD SIZE | 4.531 INCHES SINGLE THREADED PORTION | | SEATING SURFACE SHAPE | FLAT | | SPECIAL FEATURES | 4 BROACHED SLOTS,5/16 IN. W,1/16 IN. DP. | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD LENGTH | 0.406 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 12 SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.531 INCHES NOMINAL |
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