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 5975-01-599-7092
NSN 6135-01-069-2482
NSN 7035-00-392-5417
NSN 6110-00-105-9850
NSN 5975-01-591-8918
NSN 6110-01-487-6339
NSN 4140-00-289-9263
NSN 6150-01-283-4355
NSN 5965-00-757-3403
NSN 6150-01-443-1162
NSN 6650-01-247-6623
NSN 6620-01-279-0651