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 5930-01-382-9798
NSN 5935-01-171-4384
NSN 5935-00-874-7674
NSN 6220-00-186-0177
NSN 5930-01-290-5921
NSN 5950-01-117-2348
NSN 6620-01-114-9549
NSN 5925-01-609-0631
NSN 5996-01-491-0178
NSN 4140-00-231-1475
NSN 6610-01-105-7880
NSN 5910-01-458-2720