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 6105-01-227-0388
NSN 6240-00-226-5970
NSN 5935-01-322-4930
NSN 5920-01-538-1629
NSN 6145-01-394-3122
NSN 5999-01-408-1912
NSN 7035-01-179-1739
NSN 4140-01-432-9851
NSN 6130-01-406-4769
NSN 5945-01-044-4096
NSN 5945-00-450-0255
NSN 5996-01-586-0162