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 6145-01-076-5071
NSN 5999-01-525-1266
NSN 6650-00-287-5868
NSN 5975-01-152-6048
NSN 6620-01-587-9533
NSN 6240-01-294-3988
NSN 5965-01-046-9619
NSN 5996-00-411-7119
NSN 6685-01-505-1527
NSN 5925-00-052-7771
NSN 6650-00-035-9297
NSN 5999-00-038-4054