When should a gasket be replaced in a naval system?

• A. Only during overhaul
• B. When damaged, degraded, or during disassembly
• C. Never replace
• D. At every inspection regardless

Answer: (B)

Gaskets are sealing elements that must form a fresh, uniform seal at the joint every time the system is opened or stresses change their condition. In naval equipment, joints endure vibration, temperature swings, and exposure to fluids, which can crack, deform, or degrade gasket material. If a gasket is damaged or degraded, it cannot reliably seal, risking leaks or system failure. Replacing the gasket during disassembly guarantees a new, properly seated seal and correct bolt torque, restoring integrity. Waiting for an overhaul misses problems that can arise between intervals, while replacing at every inspection is unnecessary and wasteful unless evidence of damage exists. Never replacing a gasket is unsafe because a compromised seal can lead to leaks and mission-critical failures. So, the best practice is to replace the gasket whenever it is damaged, degraded, or whenever the joint is disassembled.