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 5930-00-034-3481
NSN 5895-01-422-1041
NSN 5835-00-550-7728
NSN 6105-00-231-1534
NSN 7035-00-064-7008
NSN 6645-01-484-9847
NSN 5960-00-715-9227
NSN 6105-01-334-1442
NSN 4140-00-204-3563
NSN 5996-01-538-4658
NSN 6220-01-067-5264
NSN 6240-01-426-1350