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 5905-01-604-7681
NSN 6220-01-170-5335
NSN 5960-00-431-8739
NSN 6135-00-203-9645
NSN 6685-01-627-3871
NSN 5998-01-134-3926
NSN 6620-00-725-7289
NSN 5920-01-634-0250
NSN 5996-01-411-6195
NSN 5985-00-468-1360
NSN 6645-00-269-2764
NSN 5930-01-393-6042