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 5895-01-028-5344
NSN 6130-00-753-7446
NSN 6620-01-135-7846
NSN 5950-01-101-7184
NSN 2925-01-493-3245
NSN 6105-00-844-3972
NSN 6150-00-867-5239
NSN 6220-01-339-7557
NSN 6645-01-571-8578
NSN 6240-00-532-7770
NSN 6135-01-370-2599
NSN 6135-01-163-0332