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 5998-01-322-5896
NSN 7035-01-062-0184
NSN 6240-01-168-6185
NSN 5910-00-480-8267
NSN 5930-01-324-2367
NSN 6145-00-678-0429
NSN 5996-01-207-0804
NSN 5935-01-427-3822
NSN 2925-01-595-9720
NSN 6110-01-578-5595
NSN 2925-00-991-4499
NSN 6145-00-669-6757