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 5895-00-300-1043
NSN 6320-01-170-4068
NSN 5965-01-525-4597
NSN 5935-00-100-0101
NSN 6320-00-116-3658
NSN 6610-00-278-7647
NSN 6620-01-118-2337
NSN 6240-01-442-3501
NSN 5925-00-070-5011
NSN 5895-00-593-4806
NSN 6145-01-550-9633
NSN 7035-01-227-2546