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 5965-01-288-4736
NSN 6610-01-502-7106
NSN 6685-00-785-2052
NSN 4140-01-045-1753
NSN 5935-01-303-3587
NSN 7035-01-085-5955
NSN 2925-00-390-7546
NSN 6145-00-816-2005
NSN 5930-01-468-5685
NSN 5960-01-298-4143
NSN 5965-00-142-9052
NSN 7035-01-479-1840