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 6240-01-330-8126
NSN 5835-01-227-4752
NSN 5855-01-531-9814
NSN 6645-00-394-8924
NSN 6685-01-334-0215
NSN 5835-01-044-2628
NSN 6610-00-139-1105
NSN 5935-00-650-5888
NSN 6220-01-551-1032
NSN 6105-01-653-8574
NSN 6110-01-357-6355
NSN 5920-00-303-5290