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 5965-01-559-8299
NSN 2925-00-486-8640
NSN 5935-01-440-2330
NSN 5999-01-492-0606
NSN 5905-01-241-8803
NSN 2925-01-089-4176
NSN 5998-01-132-6467
NSN 6150-01-215-0311
NSN 6220-00-822-4426
NSN 6105-01-391-3513
NSN 5935-00-670-7895
NSN 6610-00-924-8814