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 6110-01-317-4830
NSN 6240-01-152-2662
NSN 5965-00-468-3071
NSN 7035-01-633-9537
NSN 5975-00-545-0507
NSN 5905-00-337-0447
NSN 5990-00-133-7734
NSN 6150-01-529-8076
NSN 6240-00-527-8614
NSN 5925-00-975-7105
NSN 6645-01-056-5291
NSN 6110-00-075-2426