Spa10665/8 specifies a type of engraving; 201 dash number specifies a lamp capsule
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.
Classification: Electric lamps and lighting fittings, nesoi
NSN 6110-01-162-8902
NSN 5945-01-462-1555
NSN 5945-00-024-2319
NSN 6150-01-245-0540
NSN 6620-01-111-5847
NSN 5855-01-228-0942
NSN 6645-00-607-8413
NSN 6240-01-383-8579
NSN 5905-01-054-8239
NSN 6110-01-463-9010
NSN 5960-01-583-4737
NSN 2925-01-013-9867