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 5895-00-531-5694
NSN 6150-00-245-4461
NSN 6650-01-415-5573
NSN 5915-00-795-6712
NSN 4140-01-293-2112
NSN 6130-01-483-0726
NSN 5835-01-555-4262
NSN 5950-00-203-5809
NSN 5996-00-514-7678
NSN 6240-01-463-3664
NSN 5905-01-586-5320
NSN 6220-00-229-4125