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 7035-01-472-1999
NSN 6220-01-492-9403
NSN 6110-01-139-3154
NSN 6130-01-607-7240
NSN 5935-01-526-7087
NSN 6620-01-365-1499
NSN 7035-01-596-5381
NSN 5910-00-190-0122
NSN 5895-00-172-3994
NSN 6150-00-273-9014
NSN 5999-00-996-7251
NSN 5965-00-840-6542