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 6105-00-580-1435
NSN 5905-01-326-1293
NSN 5965-00-393-1294
NSN 5855-00-138-2386
NSN 6130-01-029-4550
NSN 5915-01-013-8995
NSN 4140-01-138-6950
NSN 5998-00-258-2081
NSN 6150-00-826-1351
NSN 5915-01-415-3100
NSN 6620-00-613-3023
NSN 5915-00-089-0527