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 5985-00-690-0966
NSN 5950-01-359-5465
NSN 5895-00-569-3435
NSN 5835-00-777-8333
NSN 6130-01-436-6397
NSN 5920-01-186-6335
NSN 5985-00-949-4208
NSN 5905-00-485-6552
NSN 6110-01-641-0015
NSN 6150-00-562-7728
NSN 7035-00-371-7749
NSN 6150-00-256-2045