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 6130-01-457-5131
NSN 5910-00-490-8835
NSN 5975-01-100-5088
NSN 6645-01-625-4810
NSN 6320-01-512-2031
NSN 5855-00-089-3974
NSN 5996-00-891-2317
NSN 5998-00-902-7409
NSN 6240-01-356-2934
NSN 5945-00-005-4054
NSN 6135-00-985-7887
NSN 5895-01-314-7561