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 7035-01-150-6303
NSN 5935-01-329-9531
NSN 5990-00-959-3312
NSN 5996-01-521-4007
NSN 6620-01-142-8494
NSN 5999-01-197-3216
NSN 5930-00-053-3746
NSN 6105-01-566-4851
NSN 5920-01-440-3458
NSN 6135-01-422-1440
NSN 6320-01-627-8295
NSN 5945-01-557-1092