Reference data, f420c manual, table 6, pg 17
No other part numbers with same form, fit, and function found.
Classification: Surveying, hydrographic, oceanographic, hydrological or meteorological instruments and appliances, excluding compasses and rangefinders, nesoi
NSN 6145-00-107-7913
NSN 5985-00-231-3759
NSN 5855-00-973-5717
NSN 5945-00-926-6295
NSN 5950-01-289-7645
NSN 6650-01-541-6718
NSN 6650-00-115-2408
NSN 5895-00-107-7891
NSN 6145-00-169-4834
NSN 2925-00-578-4068
NSN 6220-01-425-1588
NSN 5975-01-049-2200