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 5998-00-169-3743
NSN 5920-01-151-4368
NSN 5965-01-141-6485
NSN 6150-00-576-3964
NSN 6220-00-959-1195
NSN 5965-01-625-4776
NSN 6145-01-538-6743
NSN 5895-01-060-8673
NSN 5895-00-233-5901
NSN 5915-01-215-1473
NSN 7035-00-436-1229
NSN 6645-01-106-4303