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 5960-01-426-3456
NSN 6685-01-382-8646
NSN 6610-01-423-0250
NSN 6645-01-142-6167
NSN 7035-00-495-2137
NSN 4140-01-428-4485
NSN 6645-01-421-6909
NSN 6240-00-698-5822
NSN 5895-00-804-9421
NSN 5915-01-363-5302
NSN 6110-00-347-7290
NSN 5945-01-202-8119