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 6130-01-598-5937
NSN 6620-01-157-9267
NSN 5990-01-604-0862
NSN 5996-01-123-1783
NSN 6620-01-478-2962
NSN 5915-00-468-3911
NSN 6110-00-379-9693
NSN 7035-01-251-8622
NSN 6135-00-165-3756
NSN 5975-01-094-6250
NSN 5975-01-068-3549
NSN 5960-00-923-5047