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 5895-01-463-1940
NSN 6110-01-250-6886
NSN 6135-01-223-3869
NSN 7035-00-541-8516
NSN 5895-01-212-2918
NSN 6610-00-994-0190
NSN 5998-01-375-2837
NSN 5910-01-476-7528
NSN 6130-00-468-6222
NSN 5965-01-437-5934
NSN 6220-01-620-0853
NSN 5990-01-017-9861