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 5996-01-368-0079
NSN 6685-01-573-2188
NSN 5985-01-258-5943
NSN 5925-01-469-3103
NSN 5996-01-088-2260
NSN 4140-01-472-2442
NSN 7035-00-523-7492
NSN 5905-01-017-5857
NSN 6650-00-193-7358
NSN 5965-01-109-2917
NSN 6150-01-524-3399
NSN 6150-01-091-5085