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 6645-01-296-2301
NSN 5965-01-467-3203
NSN 6240-01-013-8895
NSN 6150-00-627-2081
NSN 6620-00-179-9079
NSN 6240-01-519-0507
NSN 5950-00-985-2037
NSN 5998-01-185-4294
NSN 5930-00-864-5468
NSN 7035-00-055-9778
NSN 6135-00-930-5372
NSN 6685-01-125-4614