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 5935-01-286-6908
NSN 6130-01-546-6207
NSN 5835-00-180-7555
NSN 5855-00-451-6155
NSN 6240-01-370-4789
NSN 5996-01-177-2848
NSN 6240-01-164-5019
NSN 5930-00-269-4996
NSN 6105-01-076-4670
NSN 6650-01-370-5265
NSN 5985-01-242-3920
NSN 6240-01-475-7261