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 6145-01-634-0388
NSN 6645-01-101-2877
NSN 6240-00-737-2775
NSN 5996-01-566-6600
NSN 5999-01-227-2107
NSN 5920-01-567-9073
NSN 5998-01-543-2253
NSN 5950-01-103-3603
NSN 6685-01-563-5227
NSN 7035-01-318-1019
NSN 5915-01-243-2534
NSN 5895-00-495-2190