MIL-R-18531 Revision B, January 29, 1960
RECEIVER, INFARARED (VIEWING SET), AN/SAR-6()
Includes all amendments and changes through Amendment 1, July 21, 1961
Additional Comments: CNCL S/S BY MIL-R-23489
This specification covers the design and construction of the Infrared Receiver AN/SAR-6( ), which is intended for use aboard ship at night, for observing near infrared sources and for viewing by means of infrared illumination.