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 5998-01-436-2909
NSN 5965-01-279-1075
NSN 6220-01-359-8322
NSN 6620-00-498-7781
NSN 5996-00-403-3753
NSN 5855-00-532-0025
NSN 6645-01-259-4231
NSN 5855-01-620-4801
NSN 6105-00-331-7680
NSN 6135-01-142-2417
NSN 5895-01-463-2728
NSN 5960-01-190-2996