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 5905-01-438-1832
NSN 5835-01-416-6455
NSN 5935-00-571-8123
NSN 6650-00-269-5000
NSN 2925-01-510-2221
NSN 5975-00-889-8620
NSN 6650-01-433-7729
NSN 6645-01-025-1002
NSN 4140-01-569-9714
NSN 6240-01-542-3823
NSN 5895-01-094-3581
NSN 5960-01-522-0391