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 6645-01-201-5802
NSN 5835-01-068-4214
NSN 6645-00-189-7075
NSN 6105-01-499-8804
NSN 6610-00-678-9887
NSN 6620-00-092-0871
NSN 6645-01-259-7142
NSN 6105-01-109-3936
NSN 6240-01-173-7809
NSN 5895-01-659-5684
NSN 5965-01-530-2673
NSN 6150-01-324-8035