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 5945-01-055-0824
NSN 5920-00-177-2738
NSN 6610-00-891-6370
NSN 5945-00-553-9963
NSN 6130-00-291-4877
NSN 6240-01-014-5598
NSN 6105-01-336-4882
NSN 5999-01-227-2107
NSN 6220-01-276-5399
NSN 6130-00-110-3669
NSN 5895-01-464-0063
NSN 6610-00-500-6944