Part of the md420 emergency power system, which also includes md421 battery module
No other part numbers with same form, fit, and function found.
A signaling apparatus which operates electromagnetically and serves to indicate visually, or visually and audibly, whether a current is flowing, has flowed, or has changed direction of flow in one or more circuits. It is usually employed in connection with alarms, electric bells, or buzzers. See also alarm (as modified).
Classification: Parts of electric sound or visual signaling apparatus other than printed circuit assemblies, nesoi
NSN 6220-01-498-2800
NSN 5855-01-441-3189
NSN 6105-00-635-9809
NSN 5985-01-243-5306
NSN 6110-01-457-2351
NSN 5905-01-241-3639
NSN 5855-00-134-0569
NSN 5835-01-411-7050
NSN 7035-01-596-5381
NSN 2925-01-210-6531
NSN 6685-00-036-5117
NSN 5960-01-502-0344