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 6685-01-625-9138
NSN 5965-00-471-5018
NSN 6105-00-607-0811
NSN 5960-01-419-1452
NSN 5998-01-250-7424
NSN 5999-01-371-5616
NSN 6220-01-185-5545
NSN 6150-01-201-5432
NSN 6645-01-641-1575
NSN 5999-01-041-3794
NSN 5960-01-543-0235
NSN 6110-01-011-8083