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 5895-01-648-4979
NSN 6685-01-031-3009
NSN 5835-00-257-2852
NSN 5996-00-239-2342
NSN 7035-01-547-4692
NSN 5930-01-464-9385
NSN 6240-01-034-9457
NSN 5855-01-506-6767
NSN 5855-01-203-4719
NSN 6645-00-591-8036
NSN 5985-01-423-7202
NSN 5999-01-289-2410