6760-00-018-9471 (5531-115-4)
NSN 6760-00-018-9471 (NIIN 00-018-9471) is a lens front cap in Federal Supply Class 6760, Photographic Equipment And Accessories. Manufacturer part number 5531-115-4 (Recon/Optical, Inc., CAGE 11871); also referenced as 5531-110 (Bourns Instruments Inc).
NIIN assigned August 1968; DEMIL A (none required); unit of issue EA (each), $666.38 gov standard price.