Key shelf life material is the lithium battery
NSN 5965-01-147-5847
NSN 5999-01-311-6728
NSN 5905-01-529-6604
NSN 5996-01-117-6095
NSN 4140-01-652-5057
NSN 5960-01-361-6543
NSN 5965-00-058-6751
NSN 6620-01-096-3723
NSN 6650-00-153-3155
NSN 5920-01-641-6324
NSN 5996-00-822-7973
NSN 5920-01-203-6952