SEAT
P/N GV178-212-1
NSN 4810 00 582 4050
MFG AUTOMATIC SWITCH COMPANY
 
NEW GOV SURPLUS
SUPPLIER CAGE CODE 03EF7
 
ITEM NAME:   SEAT,VALVE
DEFINITION:  A replaceable item designed to provide a 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.
            
 
CHARACTERISTIC                          VALUE
THREAD CLASS                            2A SINGLE THREADED PORTION                       
THREAD LENGTH                           0.250 INCHES NOMINAL SINGLE THREADED PORTION     
FLANGE DIAMETER                         2.156 INCHES NOMINAL                             
BODY INSIDE DIAMETER                    1.562 INCHES NOMINAL                             
III END ITEM IDENTIFICATION             VALVE MODEL AV182-430-2                          
FLANGE SEAT TO DISK END                 1.000 INCHES NOMINAL                             
HEIGHT                                                                                    
UNDER FLANGE HEIGHT                     0.500 INCHES NOMINAL                             
THREAD QUANTITY PER INCH                18 SINGLE THREADED PORTION                       
NOMINAL THREAD SIZE                     1.875 INCHES SINGLE THREADED PORTION             
SEATING SURFACE SHAPE                   FLAT                                             
SPECIAL FEATURES                        1.000 IN. LG PARTIALLY FLATTED FLANGE            
MATERIAL                                NICKEL ALLOY OVERALL                             
STYLE DESIGNATOR                        THREADED FLANGED                                 
THREAD SERIES DESIGNATOR                UNS SINGLE THREADED PORTION