A fitting used with a union nut and thread piece to form a union.
NSN 5960-01-203-9814
NSN 6645-00-067-7070
NSN 5965-01-347-7328
NSN 5925-01-433-1633
NSN 6650-01-355-7348
NSN 5905-00-919-0160
NSN 5985-01-547-6572
NSN 6145-01-592-4223
NSN 5855-01-412-9449
NSN 5930-00-066-6965
NSN 6130-00-280-2518
NSN 5945-00-428-6353