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 6240-00-351-8564
NSN 5915-00-269-9252
NSN 5895-01-383-4710
NSN 5925-01-355-6523
NSN 5925-00-192-3217
NSN 6650-01-443-5342
NSN 5910-00-905-6174
NSN 5905-00-053-4575
NSN 5950-00-339-2816
NSN 5985-01-335-1979
NSN 5998-01-123-3637
NSN 6610-00-984-6528