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 6105-01-101-0233
NSN 6240-01-046-4363
NSN 6650-01-358-7055
NSN 6620-01-116-3983
NSN 6645-01-167-5814
NSN 6610-01-448-8904
NSN 6110-01-643-9282
NSN 6650-01-611-4903
NSN 6620-00-079-4595
NSN 5915-00-528-9286
NSN 6150-00-010-1416
NSN 6150-01-368-9245