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 5990-01-245-7299
NSN 6105-01-355-6603
NSN 5999-01-112-9305
NSN 5920-00-700-2942
NSN 5999-00-992-5194
NSN 6645-00-262-7448
NSN 6145-01-422-6059
NSN 5950-00-248-6487
NSN 6240-00-643-0920
NSN 5905-01-399-1587
NSN 6145-01-106-1252
NSN 5930-00-264-4815