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 2925-01-043-9786
NSN 5930-01-524-0642
NSN 6135-00-930-0810
NSN 6645-01-525-7493
NSN 6320-01-185-3857
NSN 6685-01-414-7712
NSN 6110-01-575-9647
NSN 5996-01-013-8824
NSN 5998-00-497-0406
NSN 5905-00-624-1431
NSN 6320-01-285-1922
NSN 4140-01-359-2643