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 5935-00-233-6353
NSN 6620-00-025-1889
NSN 6105-01-175-6031
NSN 2925-00-343-3235
NSN 5965-01-005-6617
NSN 6610-00-624-4494
NSN 5965-00-227-7348
NSN 6105-00-220-2737
NSN 6105-01-530-1607
NSN 5990-00-492-5063
NSN 5960-01-538-2082
NSN 6610-00-202-5481