WordNet sense 1 (serviceable for a long time):

long-wearing

WordNet sense 2 (very long lasting):

indestructible, perdurable, undestroyable

WordNet sense 3 (not perishable):

imperishable

WordNet sense 4 (existing for a long time):

lasting, long-lasting, long-lived

WordNet sense 5 (primarily temporal sense; being or indicating a relatively great or greater than average duration or passage of time or a duration as specified):

long