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National Stock Number:
4820-00-012-3260
Federal Supply Class:
4820
National Item Identification Number:
000123260
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:
| 45D63 | 72914 | GRIMES AEROSPACE COMPANY |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM | | OVERALL HEIGHT | 0.785 INCHES MINIMUM AND 0.795 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5640 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL THREAD SIZE | 0.438 INCHES SINGLE THREADED PORTION | | SEAL ACCOMMODATION TYPE | GROOVED | | SEATING SURFACE SHAPE | FLAT | | STYLE DESIGNATOR | PLAIN THREADED | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A SINGLE THREADED PORTION | | THREAD LENGTH | 0.380 INCHES NOMINAL SINGLE THREADED PORTION | | THREAD SERIES DESIGNATOR | UNF SINGLE THREADED PORTION |
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