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 6620-01-062-1662
NSN 6145-01-073-3766
NSN 5985-01-099-1086
NSN 5895-01-022-2819
NSN 5999-01-023-6397
NSN 5855-01-659-8769
NSN 6610-01-071-2037
NSN 6130-00-104-5573
NSN 7035-01-202-9250
NSN 5945-00-081-9491
NSN 5990-01-351-4621
NSN 5910-01-111-3555