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 5965-01-384-1953
NSN 5920-00-131-9819
NSN 6240-01-499-6109
NSN 5999-00-934-8747
NSN 6650-01-137-1685
NSN 6320-00-400-8042
NSN 5950-01-243-2966
NSN 5950-01-381-5610
NSN 6320-01-289-0946
NSN 5920-01-401-5315
NSN 5905-01-225-8035
NSN 6610-01-308-6148