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 6645-01-550-9669
NSN 5935-00-035-4559
NSN 6620-00-983-4171
NSN 6685-01-265-0634
NSN 5835-01-357-1247
NSN 5930-01-059-2674
NSN 5920-00-111-0563
NSN 6685-00-383-3393
NSN 2925-01-337-2508
NSN 5895-01-083-4358
NSN 6110-00-477-7932
NSN 5975-01-546-4606