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 6110-01-262-8654
NSN 5998-01-474-5779
NSN 5945-00-185-4815
NSN 6320-01-387-3230
NSN 4140-01-605-1706
NSN 5999-00-139-1729
NSN 6110-01-633-9660
NSN 5998-01-312-1030
NSN 5998-01-501-4879
NSN 5905-01-515-1506
NSN 6685-01-423-1064
NSN 5985-01-173-3309