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 6240-00-406-8141
NSN 5835-00-479-0464
NSN 6135-01-128-5358
NSN 6110-01-260-3688
NSN 6320-00-894-1644
NSN 5930-01-423-9878
NSN 6135-01-503-1688
NSN 6105-01-548-1656
NSN 5950-01-336-3811
NSN 5910-01-382-0202
NSN 6685-00-917-7277
NSN 6320-01-466-4175