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 5895-01-032-1754
NSN 6130-01-090-6641
NSN 6150-01-461-9856
NSN 6685-00-479-8527
NSN 5910-00-822-8732
NSN 6105-01-322-8246
NSN 5996-00-338-9760
NSN 6320-00-857-4073
NSN 5930-00-659-2582
NSN 5996-00-340-3645
NSN 5855-01-448-8799
NSN 2925-01-446-6976