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 6240-00-902-0936
NSN 5925-00-205-2767
NSN 5895-00-321-0273
NSN 5925-00-627-2011
NSN 6150-01-494-6185
NSN 6135-00-269-5843
NSN 6130-01-535-7462
NSN 6220-00-419-0635
NSN 5930-00-891-2416
NSN 6130-01-205-7277
NSN 5950-01-193-1964
NSN 5905-01-495-2285