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 5835-01-123-8305
NSN 6105-00-942-2297
NSN 5975-01-068-4125
NSN 6650-00-404-4400
NSN 6320-00-908-6841
NSN 5930-01-152-2621
NSN 5905-00-274-3789
NSN 5895-01-304-9920
NSN 6110-01-045-3256
NSN 6685-00-303-3283
NSN 5990-01-320-1412
NSN 6650-01-078-3184