A fitting used with a union nut and a tailpiece to form a union.
NSN 2925-01-255-6394
NSN 6240-01-461-9011
NSN 6645-00-998-2918
NSN 5920-01-184-3195
NSN 6620-01-443-3526
NSN 5965-01-411-9933
NSN 5950-01-517-1025
NSN 5910-01-465-5019
NSN 6220-00-566-2848
NSN 5975-01-327-3157
NSN 5945-01-014-2859
NSN 6150-01-469-6821