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 6145-00-647-3660
NSN 6110-01-657-0155
NSN 5835-00-484-1529
NSN 5960-00-833-9154
NSN 6135-00-840-6451
NSN 5985-01-204-4503
NSN 5905-01-236-8621
NSN 6320-00-070-4544
NSN 6620-01-504-5756
NSN 5910-01-093-6931
NSN 5999-00-161-0605
NSN 6240-01-195-8696