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 5998-00-491-9305
NSN 5965-01-508-7940
NSN 5950-01-227-2339
NSN 5975-01-513-8394
NSN 6685-01-414-1904
NSN 4140-01-067-8242
NSN 6130-00-114-7620
NSN 5999-00-844-9166
NSN 5999-00-575-4977
NSN 6320-00-513-8376
NSN 5895-00-949-2711
NSN 6650-01-555-8349