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National Stock Number: 4820-00-533-3969
Federal Supply Class: 4820
National Item Identification Number: 005333969
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:
252-5A | 45934 | ONTIC ENGINEERING & MANUFACTURING, INC | 252-5A | 56705 | DONALLCO INC |
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Techincal Specification:
BODY INSIDE DIAMETER | 0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM | BODY OUTSIDE DIAMETER | 0.314 INCHES MINIMUM AND 0.315 INCHES MAXIMUM | FSC APPLICATION DATA | PUMP,ROTART,HYDRAULIC SYSTEM,AIRCRAFT | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM BODY | OVERALL HEIGHT | 0.187 INCHES NOMINAL | MATERIAL DOCUMENT AND CLASSIFICATION | AISI 8720 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | STEEL OVERALL | SEATING SURFACE SHAPE | FLAT | STYLE DESIGNATOR | PLAIN | SURFACE TREATMENT | OXIDE OVERALL |
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