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 5996-00-642-5565
NSN 5960-01-010-3083
NSN 5945-01-384-4388
NSN 5975-00-778-6336
NSN 5996-00-222-6049
NSN 6685-01-448-1108
NSN 5915-01-386-0001
NSN 5920-00-084-3657
NSN 6110-01-076-6650
NSN 5835-01-540-4995
NSN 5975-01-279-9523
NSN 5895-01-122-0606