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 6145-00-065-1789
NSN 6105-01-156-4227
NSN 6610-00-064-4741
NSN 6105-01-432-1342
NSN 5996-00-562-7033
NSN 6105-01-126-2771
NSN 2925-01-138-3565
NSN 6320-01-215-2284
NSN 6645-01-023-8020
NSN 6105-00-853-5434
NSN 5905-01-214-4120
NSN 5855-01-279-5316