This 28VDC, 0.04A, S6s/8, midget flange, platinum filament, 15.8 x 6.3mm, non-magnetic, copper-based lamp has been obsolete since 1999. Aerco has now reinstated this lamp, NATO stock ref: 6240.99.995-9121, by placing an order for 5,000, the minimum quantity that was viable for the manufacturer. Aerco now holds 500 in stock at all times.
Aerco supplies over 900 types of lamps including aviation, military, automotive, fluorescent, sealed beams, NATO specified and many standard commercial types and has always provided a service of sourcing lamps for any market.