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 5930-00-093-0805
NSN 5965-01-303-1676
NSN 6240-01-325-3544
NSN 6685-00-394-8788
NSN 5920-00-142-9993
NSN 5895-01-206-4058
NSN 5950-00-024-3859
NSN 5965-01-340-3723
NSN 5855-01-577-3140
NSN 5965-00-168-9624
NSN 5999-00-173-4839
NSN 5950-00-358-1140