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 7035-01-656-3538
NSN 6320-00-731-6134
NSN 6620-00-517-6209
NSN 6240-00-509-2485
NSN 5905-01-047-9423
NSN 5990-00-539-7859
NSN 5895-01-088-7187
NSN 5905-00-597-5904
NSN 5999-01-555-5476
NSN 6150-00-037-3677
NSN 6105-00-455-8879
NSN 5965-01-043-2014