A fitting used with a union nut and a tailpiece to form a union.
NSN 5895-01-566-0851
NSN 2925-01-027-1293
NSN 5920-01-167-9678
NSN 5855-00-411-8688
NSN 5950-01-184-5300
NSN 5905-01-595-4911
NSN 5945-01-237-0617
NSN 5910-00-296-8816
NSN 5925-00-324-2996
NSN 6150-00-813-9422
NSN 4140-01-435-7515
NSN 6105-00-664-1292