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 6130-00-826-8284
NSN 5930-00-926-3103
NSN 6645-01-063-8243
NSN 6240-00-461-1451
NSN 6220-01-095-0117
NSN 7035-01-118-5861
NSN 5895-01-089-7857
NSN 5935-01-631-4220
NSN 6320-01-017-5274
NSN 5999-01-552-5643
NSN 5935-01-478-0494
NSN 6685-00-453-9357