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 5998-01-392-0582
NSN 5930-00-225-2869
NSN 5925-00-140-6367
NSN 5905-01-424-0798
NSN 6240-01-157-9128
NSN 6150-00-470-7136
NSN 5925-01-008-8520
NSN 6240-00-267-2860
NSN 5905-01-314-3907
NSN 5925-01-107-1951
NSN 6645-00-960-6594
NSN 5920-01-075-7116