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 6650-01-347-2291
NSN 6240-00-152-6289
NSN 5835-01-371-8759
NSN 6240-01-579-8568
NSN 5905-01-352-5824
NSN 6110-01-539-2383
NSN 5855-01-398-0090
NSN 6220-01-476-6204
NSN 7035-01-241-9908
NSN 5930-01-215-2166
NSN 5905-01-539-9948
NSN 6645-00-232-4070