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 5920-00-903-4157
NSN 7035-00-500-7839
NSN 6685-00-057-2777
NSN 5998-01-363-6568
NSN 6110-00-226-1753
NSN 6105-01-057-2794
NSN 6645-00-940-0774
NSN 5960-01-168-1063
NSN 6240-00-793-7969
NSN 6240-01-656-4920
NSN 6620-00-053-2999
NSN 5999-00-724-6706