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 5915-00-152-4016
NSN 5895-01-217-7513
NSN 6240-01-650-5348
NSN 5915-01-050-0531
NSN 5895-00-111-1560
NSN 5855-01-029-8733
NSN 5935-00-091-1117
NSN 6610-00-458-5444
NSN 5975-01-513-9533
NSN 5910-00-012-2865
NSN 6685-01-648-8342
NSN 6220-01-521-6449