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 5905-00-984-5616
NSN 6105-01-171-3256
NSN 6145-00-663-6133
NSN 5935-00-067-7800
NSN 5930-00-940-0862
NSN 6130-00-284-1629
NSN 5935-01-445-0841
NSN 5999-01-089-9664
NSN 6320-01-271-0247
NSN 5895-01-541-5483
NSN 6130-01-099-4950
NSN 6130-01-184-7393