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 5910-00-912-9103
NSN 6650-01-608-8010
NSN 5965-01-005-0341
NSN 5920-01-440-0186
NSN 6105-00-664-1292
NSN 6610-00-469-8534
NSN 5935-00-470-2016
NSN 6620-01-013-5432
NSN 6130-00-311-5693
NSN 5930-01-407-7441
NSN 5895-01-515-3991
NSN 6130-01-468-9154