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 6105-01-106-4157
NSN 6220-01-269-5263
NSN 5996-01-085-7307
NSN 6650-01-021-2436
NSN 6105-01-292-5169
NSN 2925-01-422-1542
NSN 5835-01-329-4814
NSN 6130-00-186-8460
NSN 5895-01-545-7776
NSN 5910-00-248-6899
NSN 5910-01-602-3184
NSN 5996-01-483-0645