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 6150-01-515-8854
NSN 6105-01-225-6441
NSN 5996-00-810-9486
NSN 5935-01-386-6367
NSN 5855-01-223-0833
NSN 5935-01-089-9896
NSN 5930-01-426-9130
NSN 6320-01-522-0318
NSN 5998-01-447-6599
NSN 6105-00-275-0826
NSN 5935-01-360-6240
NSN 5920-01-341-0724