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 7035-00-063-5245
NSN 5930-01-530-1275
NSN 5920-00-814-2328
NSN 5910-01-479-3064
NSN 5990-01-379-6877
NSN 6645-01-627-8040
NSN 5965-01-578-7378
NSN 6240-01-343-1386
NSN 5920-00-552-1567
NSN 5998-00-823-8488
NSN 6105-01-535-4080
NSN 5905-00-932-4648