MIL-G-25597D (NOTICE-1), MILITARY SPECIFICATION: GYROSCOPE, DISPLACEMENT, ROLL AND PITCH, TYPE MD-1 (15-JAN-1996)
MIL-G-25597D (NOTICE-1), MILITARY SPECIFICATION: GYROSCOPE, DISPLACEMENT, ROLL AND PITCH, TYPE MD-1 (15-JAN-1996)., MIL-G-25597D is inactive for new design; however, the document is valid for use.