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 6110-01-415-0589
NSN 5945-01-115-2868
NSN 5935-01-121-9780
NSN 5920-00-504-7657
NSN 5965-00-898-1356
NSN 5960-01-408-6290
NSN 5998-01-452-7087
NSN 5930-01-139-6963
NSN 6135-00-228-8140
NSN 5990-00-583-9920
NSN 6130-01-557-4783
NSN 6130-00-180-2175