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 5925-01-634-0664
NSN 7035-01-390-1132
NSN 6150-00-491-9654
NSN 6320-00-149-7570
NSN 5910-01-613-3049
NSN 5965-01-502-0641
NSN 5945-00-333-1166
NSN 5999-01-309-8703
NSN 5905-00-956-7722
NSN 6145-01-415-6127
NSN 5998-01-415-3286
NSN 5895-01-077-5578