Click to expand Tap to zoom MS28778-20 Part: #MS28778-20 by National Aviation Original price $1.95 - Original price $1.95 Original price $1.95 $1.95 - $1.95 Current price $1.95 | / - Availability: Only 2 left! Quantity: Add to cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. Description Description MS28778 Tube Fitting Boss Gasket Description MS28778 Tube Fitting Boss Gasket