5340-01-030-6089 (BPM20WC)
NSN 5340-01-030-6089 (NIIN 01-030-6089) is a dust and moisture protective cap in Federal Supply Class 5340, Hardware, Commercial — an item specifically designed to fit over the opening(s) of various items to provide mechanical protection and/or to prevent the entrance of foreign matter. Manufacturer part number BPM20WC.
NIIN assigned November 1976; DEMIL A (none required).