National Stock Number: 6220-99-393-4597
  Federal Supply Class: 6220
  National Item Identification Number: 993934597
  Description: LIGHT,INDICATOR
  Detail: A light, with mounting facilities furnished, designed to convey information of a specific nature concerning the circuit in which inserted. Must include or provide for the use of a lens as a part of it. For items without a lens, see LAMPHOLDER, and also see LIGHT (1), PANEL. 
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