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 5945-01-337-0278
NSN 6145-01-622-1218
NSN 5945-01-651-7403
NSN 5835-00-170-5238
NSN 5985-00-045-8116
NSN 6610-00-459-4582
NSN 6610-01-569-9086
NSN 5960-00-723-2793
NSN 5855-01-511-0995
NSN 5920-01-153-7487
NSN 5855-01-513-9601
NSN 5985-00-518-1748