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 5990-00-466-2952
NSN 6105-01-181-6084
NSN 5835-00-233-6327
NSN 6645-01-461-7704
NSN 7035-01-245-7973
NSN 5905-01-265-9676
NSN 6685-00-491-1101
NSN 6135-01-374-6631
NSN 5990-01-219-9018
NSN 5990-01-365-3453
NSN 6105-01-240-7070
NSN 5999-01-483-9941