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 6320-00-937-5625
NSN 6105-01-173-6972
NSN 6645-00-739-6718
NSN 5945-00-067-5776
NSN 5985-01-464-2675
NSN 5950-01-478-0215
NSN 4140-01-087-3336
NSN 5895-01-227-4282
NSN 4140-00-173-0706
NSN 5895-01-123-1171
NSN 6610-01-436-2803
NSN 6685-01-227-4751