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 6105-00-030-4430
NSN 6130-00-935-0378
NSN 6240-01-165-2693
NSN 5895-00-776-6079
NSN 4140-01-634-0330
NSN 6110-01-642-5848
NSN 5945-01-361-9775
NSN 5855-01-477-0550
NSN 5965-01-446-1803
NSN 5895-00-617-4429
NSN 6130-00-252-5951
NSN 5920-01-411-7725