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 2925-00-877-4307
NSN 6105-00-431-1743
NSN 5965-01-627-2606
NSN 5996-00-525-1777
NSN 5895-00-353-1795
NSN 7035-00-215-3272
NSN 6135-00-062-5080
NSN 6685-01-537-0606
NSN 6105-00-829-3756
NSN 6135-01-504-6929
NSN 5835-01-487-3042
NSN 5895-00-987-9523