An item of various shapes and cross-sections, that may be flanged and that is designed to fit over a valve seat, allowing proper positioning of the seat with a flow control device.
Classification: Parts of taps, cocks, valves and similar appliances, nesoi
NSN 6145-01-063-8566
NSN 5925-00-951-9232
NSN 5835-01-178-4154
NSN 6240-00-888-9669
NSN 2925-00-192-1166
NSN 5920-01-293-0988
NSN 5950-01-117-1591
NSN 5935-01-107-4126
NSN 5999-01-571-9079
NSN 5998-01-348-0209
NSN 4140-01-372-4296
NSN 5996-00-689-9228