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 6110-00-416-6840
NSN 6320-00-149-7570
NSN 6130-01-372-7400
NSN 5985-00-133-5802
NSN 6610-01-509-2048
NSN 6135-01-031-0862
NSN 6610-01-358-7582
NSN 5910-01-494-1982
NSN 5945-01-375-5563
NSN 6150-01-045-7088
NSN 5835-01-647-6426
NSN 5905-01-530-0839