Key shelf life material is the lithium battery
NSN 5985-01-168-9636
NSN 6240-01-129-4870
NSN 7035-01-528-3763
NSN 6610-01-049-2661
NSN 5835-01-381-9565
NSN 5930-01-535-5746
NSN 6610-00-149-1534
NSN 5905-00-997-2215
NSN 7035-00-337-8745
NSN 5996-01-480-4559
NSN 6240-01-468-5576
NSN 5999-01-410-8761