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 6145-00-407-5676
NSN 7035-01-040-6373
NSN 6145-00-825-2657
NSN 5905-00-859-5051
NSN 6320-01-350-5570
NSN 5950-00-061-1246
NSN 6105-01-138-3102
NSN 6645-01-514-7403
NSN 6685-01-374-5573
NSN 5960-00-109-2806
NSN 5960-01-171-1664
NSN 6320-00-098-2858