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 5905-01-451-0912
NSN 6150-00-842-9127
NSN 6685-01-086-7268
NSN 6645-00-147-9069
NSN 6685-00-443-7708
NSN 5905-01-403-2806
NSN 6240-01-356-6911
NSN 6130-00-082-2633
NSN 5998-01-168-6346
NSN 5945-00-142-0005
NSN 5975-01-555-7901
NSN 6645-01-459-2966