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 6105-01-140-6006
NSN 5925-00-414-1433
NSN 6610-01-266-0880
NSN 5935-00-185-5560
NSN 5920-01-153-2360
NSN 5910-01-648-4656
NSN 6240-00-757-7894
NSN 6685-01-048-8169
NSN 5950-00-001-2621
NSN 5990-01-432-4984
NSN 5930-01-382-8213
NSN 6135-01-334-3935