The key material for shelf life determination is natural rubber
An item made of material having elastic properties. it may have rigid mounting facilities such as a flange(s), sleeve(s), stud(s) or the like. it is designed to isolate or dampen shock and/or vibration of a continuous or intermittent origin and serve as a support for a weapon system component to be isolated. excludes mount, resilient, general purpose; spring (as modified); bumper, nonmetallic; bumper, rubber; bushing, nonmetallic; hydraulic and pneumatic shock absorbers, dash-pots, grommets, and shock pads.
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 5835-01-455-3380
NSN 2925-01-049-8906
NSN 5835-01-608-8868
NSN 6110-01-167-7939
NSN 5996-01-574-0898
NSN 5975-00-915-0530
NSN 6110-00-557-8631
NSN 5910-00-249-1653
NSN 4140-01-065-1884
NSN 5999-00-431-9230
NSN 5990-00-241-1301
NSN 5895-01-204-8433