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 6685-01-258-0416
NSN 6105-01-046-8413
NSN 6240-00-702-6955
NSN 5965-00-249-6980
NSN 5910-01-443-3016
NSN 6240-01-458-5730
NSN 6220-01-415-0926
NSN 6610-01-340-1761
NSN 5985-00-189-2396
NSN 5975-01-481-9621
NSN 5930-00-435-2204
NSN 5950-01-562-2108