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 5945-00-724-7671
NSN 5950-01-357-9904
NSN 6110-00-477-7932
NSN 6150-00-290-8125
NSN 6130-00-136-2486
NSN 5998-01-406-2477
NSN 6645-01-092-4733
NSN 5975-00-434-6597
NSN 5920-01-436-1438
NSN 6620-01-535-6925
NSN 5920-01-477-7221
NSN 6645-00-583-0066