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 5835-01-371-8759
NSN 5920-01-301-0190
NSN 6240-00-689-8504
NSN 5996-00-205-2933
NSN 5950-01-178-4512
NSN 6240-01-548-4593
NSN 6110-01-011-8083
NSN 6220-01-156-4564
NSN 6240-00-368-8541
NSN 5975-01-122-3448
NSN 5835-01-359-2575
NSN 6645-01-492-4476