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		                        | National Stock Number:
 4820-01-239-9925
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 012399925
 
 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:
 
 | 31121 | 06177 | PNEUDRAULICS, INC. | 
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 Techincal Specification:
 
 | MATERIAL | STEEL COMP 440C BODY |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE BODY |  | SURFACE TREATMENT | PASSIVATE BODY |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE BODY |  | SPECIAL FEATURES | USED ON NSN 4820011879232 HYDRAULIC VALVE,B-1B ACFT |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 06177 |  | DESIGN CONTROL REFERENCE | 31121 | 
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