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 6130-00-193-0340
NSN 6150-01-559-9237
NSN 5998-01-204-4181
NSN 5996-00-191-9807
NSN 5996-01-440-9660
NSN 6320-01-516-3836
NSN 6130-01-332-2534
NSN 5930-01-450-8588
NSN 5965-01-368-9994
NSN 6150-01-322-8493
NSN 6645-00-119-6221
NSN 5985-01-037-6761