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National Stock Number:
4820-01-214-3808
Federal Supply Class:
4820
National Item Identification Number:
012143808
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:
| 255-03 | 55378 | TRAC REGULATOR CO., INC. | | 40064-4 | 55378 | TRAC REGULATOR CO., INC. | | 40064-4 ITEM 20 | 55378 | TRAC REGULATOR CO., INC. |
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Techincal Specification:
| BODY INSIDE DIAMETER | 1.375 INCHES NOMINAL | | FLANGE DIAMETER | 1.750 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.188 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD SIZE | 1.625 INCHES SINGLE THREADED PORTION | | SEATING SURFACE SHAPE | FLAT | | SPECIAL FEATURES | LOWER SEAT | | STYLE DESIGNATOR | THREADED FLANGED | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD LENGTH | 0.172 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 18 SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION | | UNDER FLANGE HEIGHT | 0.250 INCHES NOMINAL |
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