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 6130-00-517-7063
NSN 6610-01-442-3509
NSN 5965-01-560-5409
NSN 5855-00-285-8172
NSN 7035-01-023-7859
NSN 5960-00-987-1897
NSN 6130-01-356-8803
NSN 6105-01-513-9330
NSN 5996-01-555-7690
NSN 5950-01-373-0229
NSN 5855-00-991-0096
NSN 6650-01-101-9023