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 6150-00-433-4298
NSN 6220-01-421-8601
NSN 5996-01-459-9360
NSN 6610-01-135-2149
NSN 5925-00-144-0482
NSN 6645-00-117-9839
NSN 5965-00-144-2543
NSN 5975-00-351-6114
NSN 6135-01-226-4071
NSN 5990-01-432-4984
NSN 4140-01-259-5828
NSN 5945-01-299-3284