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 5920-01-484-9339
NSN 5920-01-068-0178
NSN 6645-00-591-8036
NSN 6145-01-620-9865
NSN 5920-00-021-3697
NSN 5975-00-916-2536
NSN 5910-01-123-0750
NSN 2925-00-288-1394
NSN 5895-01-070-5685
NSN 4140-01-212-5135
NSN 6135-00-715-4001
NSN 6130-01-587-4032