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National Stock Number:
4820-00-482-8449
Federal Supply Class:
4820
National Item Identification Number:
004828449
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:
| 58D67 | 72914 | GRIMES AEROSPACE COMPANY |
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Techincal Specification:
| STYLE DESIGNATOR | PLAIN FLANGED | | FLANGE DIAMETER | 0.250 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 0.208 INCHES MINIMUM AND | | 0.215 INCHES MAXIMUM | | BODY INSIDE DIAMETER | 0.155 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.140 INCHES NOMINAL | | UNDER FLANGE HEIGHT | 0.140 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 6061 OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-A-250/8 ALLOY 6061 FED SPEC ALL TREATMENT RESPONSES OVERALL | | SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 0.500 NOMINAL | | THREAD SERIES DESIGNATOR | UNC SINGLE THREADED PORTION | | NOMINAL THREAD SIZE | 12.000 INCHES SINGLE THREADED PORTION | | THREAD CLASS | 2A SINGLE THREADED PORTION | | THREAD LENGTH | 0.280 INCHES NOMINAL SINGLE THREADED PORTION |
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