Related Clues:

• Bit of NASA equipment
• Rocket gasket
• Rubber gasket
• NASA connector
• Neoprene gasket
• Space shuttle part
• NASA gasket
• Gasket
• Sort of seal
• Circular gasket
• Space shuttle gasket
• Certain gasket
• NASA problem part
• Certain NASA equipment … shown literally in the solution to this puzzle
• Challenger's problem part