6610-01-423-3608 (T-5113/AYQ-507)
6610-01-423-3608 is equivalent to manufacture part number B531. It is a pressure transducer and is classified under Federal Supply Class 6610 (6610 - Flight Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6610 - Flight Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.