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 6685-01-384-5209
NSN 6105-00-799-8897
NSN 5855-01-521-4836
NSN 5999-01-607-5302
NSN 6150-01-553-1617
NSN 6645-01-038-2829
NSN 6110-01-252-9619
NSN 6220-01-187-4260
NSN 5998-01-560-4241
NSN 6135-01-046-6803
NSN 5990-01-276-8122
NSN 5960-01-282-1111