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 5998-01-332-8664
NSN 6610-00-109-2593
NSN 6145-01-307-1502
NSN 5895-01-319-5828
NSN 5920-00-284-5785
NSN 6240-01-418-2606
NSN 5935-00-618-0209
NSN 6150-00-976-3512
NSN 5895-01-529-5403
NSN 6650-01-467-8818
NSN 5945-01-333-6138
NSN 6685-01-610-1450