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 6645-00-697-5694
NSN 6240-01-327-3239
NSN 6240-00-725-2274
NSN 5835-00-606-7042
NSN 5975-01-014-3921
NSN 5990-01-411-5930
NSN 6320-00-004-9158
NSN 7035-00-167-7411
NSN 6645-00-877-6002
NSN 5945-00-515-2667
NSN 5998-00-179-1783
NSN 6645-00-102-0015