A fitting used with a union nut and thread piece to form a union.
NSN 5835-00-816-0394
NSN 5975-01-030-3601
NSN 5915-01-145-5340
NSN 5950-01-196-9621
NSN 6320-01-362-9518
NSN 2925-01-303-5266
NSN 6145-01-469-5821
NSN 5910-00-233-6104
NSN 5930-00-375-6755
NSN 5999-01-562-1157
NSN 6110-00-891-8823
NSN 5975-00-510-6815