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 6610-01-122-0064
NSN 5975-01-291-7029
NSN 6130-01-152-9131
NSN 5975-01-290-2796
NSN 5996-01-047-0087
NSN 6135-00-437-5182
NSN 5935-01-554-3444
NSN 5975-00-557-4829
NSN 6645-01-592-0540
NSN 6620-00-663-8962
NSN 6620-00-992-5876
NSN 6320-01-082-2970