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 5905-01-194-7949
NSN 5945-01-620-8969
NSN 5915-00-849-4806
NSN 7035-01-336-0464
NSN 6135-01-462-6040
NSN 6110-00-551-8321
NSN 5945-00-068-6429
NSN 6620-01-334-5815
NSN 5960-01-500-6615
NSN 6150-01-225-7139
NSN 5920-01-050-7474
NSN 5965-00-079-0928