It’s a common situation: a part arrives, sealed and spotless, with “zero hours” — and the assumption is, it’s ready to install. But that’s not always true. Every component has both a shelf life and a service life — and they’re not the same.
Shelf life refers to the period during which a part retains its specified properties — even if never installed. It depends on material composition, storage conditions, packaging integrity, and even climate. Rubber seals, composites, and adhesives, for example, can degrade over time without ever being used.
Service life, on the other hand, starts from the moment of installation. It defines how long a component can safely and effectively function — in hours, cycles, or years. In industries like aviation, energy, or heavy equipment, this is strictly regulated.
Mistakes happen when a component sits in storage for five years, but its shelf life is only three. Even if it looks new, it may no longer be airworthy — or safe. Installing such parts can lead to premature failure that’s hard to detect until it’s too late.
We track shelf life for every batch we receive. If a deadline is approaching, we inform the client before purchase. In some cases, we request official extensions from the manufacturer — but only if the packaging is intact and all conditions were met. We never put components into circulation with unknown or expired histories.
This isn’t about paperwork. It’s about keeping your machines running, not standing idle. And understanding these details — dates, labels, and technical context — is how we help you do exactly that.
