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 5998-01-298-4576
NSN 5895-00-787-0239
NSN 6150-01-454-9409
NSN 5990-01-280-0321
NSN 6145-01-401-3713
NSN 5960-01-248-4743
NSN 6610-01-421-4396
NSN 5945-01-442-9055
NSN 7035-01-029-7221
NSN 5998-01-566-4283
NSN 5855-01-509-3781
NSN 5935-00-813-5362