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 6135-01-173-2588
NSN 6110-01-545-7082
NSN 5965-01-007-9757
NSN 5999-01-152-9179
NSN 5895-00-351-7463
NSN 5935-01-097-7666
NSN 6110-01-265-8720
NSN 6610-01-092-9846
NSN 6685-01-072-1955
NSN 5835-01-482-1591
NSN 6620-00-920-1671
NSN 5999-01-152-4000