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		                        | National Stock Number:
 4820-01-555-1350
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 015551350
 
 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:
 
 | 18362-2 | 91816 | CIRCOR AEROSPACE, INC. |  | MC33-52 ITEM 8 | 91816 | CIRCOR AEROSPACE, INC. |  | MC33-53 ITEM 3 | 91816 | CIRCOR AEROSPACE, INC. |  | MC33-54 ITEM 3 | 91816 | CIRCOR AEROSPACE, INC. | 
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 Techincal Specification:
 
 | MATERIAL | STEEL COMP 303 SEAT |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | SEAT ASSEMBLY |  | PROPRIETARY CHARACTERISTICS | PACS | 
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