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 5930-01-227-1026
NSN 5975-01-089-9862
NSN 5985-01-179-7762
NSN 6320-00-174-1362
NSN 6240-00-024-5086
NSN 6320-01-495-1244
NSN 6320-00-857-4073
NSN 6610-01-609-0799
NSN 6135-00-087-5300
NSN 5985-01-258-6202
NSN 5935-00-248-4734
NSN 6685-01-647-6859