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 5965-00-175-8972
NSN 7035-01-078-5922
NSN 5950-01-420-7853
NSN 5996-00-025-8026
NSN 5990-00-576-4882
NSN 6110-01-633-9660
NSN 6685-00-212-4531
NSN 6130-01-375-6486
NSN 5910-01-505-9276
NSN 5945-01-515-3000
NSN 5920-01-151-6992
NSN 5895-01-188-7470