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 7035-01-502-3830
NSN 5996-01-633-7979
NSN 6645-01-399-8127
NSN 5950-00-661-2612
NSN 6320-00-831-2227
NSN 6645-01-463-4314
NSN 5990-01-268-4268
NSN 6110-01-314-8429
NSN 5996-00-498-7902
NSN 6135-00-793-1809
NSN 5945-01-542-7411
NSN 6105-01-445-5247