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National Stock Number:
4820-01-214-3811
Federal Supply Class:
4820
National Item Identification Number:
012143811
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:
| 178170 | 91643 | SERVICE BRASS AND ALUMINUM FOUNDRY CO, INC. | | 178170 PC16 | 76364 | MILWAUKEE VALVE CO, INC | | 178170 PIEC | 76364 | MILWAUKEE VALVE CO, INC | | 178170-16 | 76364 | MILWAUKEE VALVE CO, INC | | 178170-16 | 91643 | SERVICE BRASS AND ALUMINUM FOUNDRY CO, INC. | | 178170 PIECE 16 | 91643 | SERVICE BRASS AND ALUMINUM FOUNDRY CO, INC. |
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Techincal Specification:
| STYLE DESIGNATOR | PLAIN THREADED | | OVERALL HEIGHT | 0.630 INCHES NOMINAL | | BODY INSIDE DIAMETER | 3.862 INCHES NOMINAL | | MATERIAL | COPPER ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 45.000 NOMINAL | | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION | | NOMINAL THREAD SIZE | 4.250 INCHES SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 16 SINGLE THREADED PORTION | | THREAD CLASS | 2A SINGLE THREADED PORTION | | THREAD LENGTH | 0.430 INCHES NOMINAL SINGLE THREADED PORTION |
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