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 5996-01-155-2467
NSN 5895-01-514-4529
NSN 6240-01-384-3887
NSN 5935-00-555-1897
NSN 6685-01-133-9921
NSN 6240-01-095-9510
NSN 5910-01-472-7556
NSN 6320-00-578-6898
NSN 5895-01-459-5386
NSN 6135-01-020-1967
NSN 5960-01-478-9493
NSN 6620-01-096-3723