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 5945-01-559-3777
NSN 6130-01-400-6123
NSN 6650-01-014-5990
NSN 5905-00-948-9389
NSN 6620-00-057-2764
NSN 6240-00-591-6836
NSN 6135-01-633-8502
NSN 6240-00-174-8902
NSN 5960-01-287-4186
NSN 7035-01-119-6271
NSN 6685-01-135-3278
NSN 6240-01-290-5165