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 5895-01-570-8306
NSN 6145-01-537-9706
NSN 5930-01-062-5847
NSN 5910-01-409-1926
NSN 5998-01-268-1174
NSN 6130-00-361-7114
NSN 5996-01-467-2177
NSN 6610-01-492-6515
NSN 6620-01-378-3175
NSN 6645-00-557-0322
NSN 5950-00-544-4574
NSN 5935-01-064-4867