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 5945-01-585-9974
NSN 5965-01-518-0623
NSN 5925-00-148-4513
NSN 5999-01-480-1314
NSN 5945-00-572-7821
NSN 5990-01-652-7373
NSN 5996-00-491-9304
NSN 5998-01-391-7498
NSN 6105-01-213-1724
NSN 5985-01-011-5580
NSN 5965-00-636-4926
NSN 6610-00-239-4931