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 5920-01-031-1199
NSN 5999-01-074-2176
NSN 5910-01-014-5129
NSN 5835-01-632-6627
NSN 5835-00-804-0569
NSN 6685-01-198-0875
NSN 6130-01-261-1967
NSN 6240-00-368-8541
NSN 2925-00-461-4954
NSN 6620-01-134-7387
NSN 5996-01-309-9162
NSN 6685-01-201-8077