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 5910-01-619-7462
NSN 6105-01-071-9406
NSN 5950-01-211-8098
NSN 5960-00-690-6018
NSN 6320-01-550-3420
NSN 5945-01-147-5727
NSN 6610-01-447-2560
NSN 6130-01-010-0975
NSN 6620-01-465-4227
NSN 6645-01-038-2829
NSN 6650-01-517-1588
NSN 5998-01-251-3676