Glossary N

Nib, Spring:
A short end section of an extension spring formed by a reduction in the coil diameter used to join the two ends in forming a garter spring.

Nick:
A void created in the seal material after molding.

Nitrile:
A general term for the copolymers of butadiene and acrylonitrile.

Nonfill:
A void in the seal material.