Use on a 4 in. Vent check valve
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.
Classification: Parts of taps, cocks, valves and similar appliances, nesoi
NSN 5945-01-510-5730
NSN 5998-00-255-2620
NSN 5920-01-106-1137
NSN 5990-01-426-7350
NSN 2925-01-437-9041
NSN 6145-00-091-1079
NSN 6320-00-593-0379
NSN 6105-01-605-1972
NSN 5895-01-123-9669
NSN 5915-00-553-8755
NSN 5990-00-932-3070
NSN 5855-00-821-7512