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 6130-01-307-4962
NSN 6105-01-394-0804
NSN 5930-01-133-0449
NSN 6220-00-621-8149
NSN 6610-01-010-2112
NSN 5935-01-256-3544
NSN 6105-01-327-2884
NSN 5920-01-244-8299
NSN 5965-01-185-2026
NSN 4140-01-572-3807
NSN 4140-01-123-3863
NSN 5996-01-564-5075