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 6130-01-487-6906
NSN 6610-01-502-8868
NSN 4140-01-106-4604
NSN 5920-01-241-3227
NSN 6110-01-575-3442
NSN 6645-00-893-4190
NSN 5915-00-434-1682
NSN 4140-01-519-9343
NSN 5920-00-357-0260
NSN 5965-01-026-9865
NSN 5835-00-106-2120
NSN 5895-01-303-8062