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 6135-01-337-9315
NSN 5905-00-601-2391
NSN 7035-01-041-2754
NSN 5945-00-228-5838
NSN 5935-01-130-6451
NSN 6110-01-574-6466
NSN 6130-01-296-9532
NSN 6220-01-102-2794
NSN 5905-01-019-4040
NSN 6220-01-236-5333
NSN 6650-01-155-5217
NSN 7035-01-455-3482