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 5935-00-964-7743
NSN 6110-01-310-2474
NSN 5925-00-841-6798
NSN 6150-01-129-0500
NSN 7035-01-379-8777
NSN 5895-01-572-3996
NSN 6620-01-651-5425
NSN 6130-01-280-5113
NSN 5999-01-527-9953
NSN 5996-00-004-4699
NSN 6685-01-222-0141
NSN 5935-01-196-0071