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 6610-01-645-0331
NSN 6610-01-242-9674
NSN 5855-01-053-0679
NSN 5996-00-690-7974
NSN 5920-00-187-0260
NSN 5945-01-482-1419
NSN 5925-00-447-3500
NSN 6135-01-584-0941
NSN 6130-00-943-1810
NSN 4140-00-686-4894
NSN 5905-00-655-4237
NSN 5990-01-134-2859