Key shelf life material is the lithium battery
NSN 5985-00-035-4558
NSN 6685-01-371-3050
NSN 6320-01-204-2922
NSN 6135-01-360-1620
NSN 5999-01-260-7370
NSN 6620-01-595-2113
NSN 6685-00-976-3920
NSN 5960-00-813-6762
NSN 6320-01-039-5891
NSN 6645-01-643-7151
NSN 6620-01-498-4780
NSN 6135-01-390-7364