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 5935-01-439-4846
NSN 7035-01-614-3757
NSN 5985-01-655-3425
NSN 5930-01-178-5707
NSN 6620-01-007-8368
NSN 5920-00-899-3384
NSN 5915-01-186-5922
NSN 6645-01-080-6052
NSN 6130-01-261-3053
NSN 6610-01-114-2013
NSN 6645-01-191-0107
NSN 7035-00-155-9513