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 5920-00-840-7313
NSN 6610-01-581-6689
NSN 5925-00-916-7851
NSN 5935-00-515-3675
NSN 6105-00-067-9030
NSN 6135-01-370-9441
NSN 6320-01-232-4664
NSN 5905-01-176-3876
NSN 5920-01-460-1168
NSN 5975-01-464-4293
NSN 5895-00-952-3490
NSN 5960-01-258-0814