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 5895-00-803-6217
NSN 5935-01-531-0970
NSN 6620-00-992-5876
NSN 6645-00-900-5830
NSN 5855-01-100-3272
NSN 5960-00-975-2540
NSN 5965-01-345-5406
NSN 5905-00-935-6954
NSN 7035-01-541-2839
NSN 6610-01-652-5060
NSN 5935-01-378-2379
NSN 5835-00-228-9082