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 5998-00-252-5761
NSN 6610-01-433-7493
NSN 6645-00-518-2068
NSN 6610-01-250-6870
NSN 2925-01-100-3694
NSN 5915-01-360-9892
NSN 6320-01-181-9474
NSN 5960-01-221-0498
NSN 5895-00-059-2726
NSN 6130-01-510-4337
NSN 6130-01-146-5804
NSN 5960-01-495-0859