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 6135-00-062-5080
NSN 5910-01-023-1406
NSN 5996-01-042-8554
NSN 5998-00-126-4496
NSN 6105-00-581-9479
NSN 7035-01-406-4146
NSN 6150-01-450-5125
NSN 5990-01-499-6930
NSN 5895-01-250-7361
NSN 6610-01-107-2658
NSN 6110-01-192-2858
NSN 6220-00-205-2040