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 5975-01-376-0426
NSN 6610-00-076-5613
NSN 5905-01-090-9405
NSN 5945-01-617-3739
NSN 4140-01-593-4538
NSN 6650-01-217-0303
NSN 6220-00-128-1670
NSN 6645-01-014-0793
NSN 6130-01-433-2215
NSN 5998-01-184-0264
NSN 5935-00-784-1766
NSN 6650-01-410-8542