A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5985-00-673-5832
NSN 5985-01-212-3931
NSN 5996-01-069-2915
NSN 6110-01-063-8309
NSN 5855-01-049-3812
NSN 6135-01-461-2915
NSN 7035-00-782-7046
NSN 6110-00-812-0226
NSN 6135-01-299-0778
NSN 5945-01-551-0654
NSN 5855-01-585-1255
NSN 5835-00-468-3367