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 6145-01-509-4057
NSN 4140-01-031-0286
NSN 6240-01-357-4293
NSN 5965-01-462-2291
NSN 6220-01-355-1251
NSN 5985-00-870-3030
NSN 5975-01-447-4830
NSN 2925-01-136-2551
NSN 5915-00-235-8863
NSN 5985-00-670-0176
NSN 6320-00-456-2092
NSN 5925-01-199-6033