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National Stock Number:
4820-00-486-3400
Federal Supply Class:
4820
National Item Identification Number:
004863400
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:
| 525-25 | 45934 | ONTIC ENGINEERING & MANUFACTURING, INC | | 525-25 | 56705 | DONALLCO INC |
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Techincal Specification:
| BODY OUTSIDE DIAMETER | 0.570 INCHES MINIMUM AND | | 0.572 INCHES MAXIMUM | | BODY INSIDE DIAMETER | 0.312 INCHES MINIMUM AND | | 0.313 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.250 INCHES NOMINAL | | UNDER FLANGE HEIGHT | 0.969 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE 52100 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND | | 50.0 ROCKWELL C MAXIMUM BODY | | SEATING SURFACE SHAPE | FLAT | | SEAL ACCOMMODATION TYPE | GROOVED | | FSC APPLICATION DATA | ACFT PROPELLER FEATHERING PUMP | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 45934 | | DESIGN CONTROL REFERENCE | 525-25 |
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