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 7035-01-408-8698
NSN 5935-01-543-7351
NSN 6105-01-608-3125
NSN 6240-01-489-5806
NSN 5925-00-226-1155
NSN 5950-01-092-0889
NSN 6610-01-411-3372
NSN 6130-01-641-6568
NSN 6150-01-505-7671
NSN 5925-01-244-7581
NSN 5985-01-237-2570
NSN 6220-01-541-7732