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 6645-01-232-4843
NSN 5910-00-237-1388
NSN 5905-00-005-4874
NSN 5935-01-595-6711
NSN 6135-00-985-7845
NSN 5930-01-433-4240
NSN 5915-01-067-9470
NSN 5998-00-383-6191
NSN 6650-00-801-1681
NSN 6150-01-290-5315
NSN 5996-01-187-8571
NSN 6145-01-507-7555