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 6620-00-262-3113
NSN 6105-01-073-9530
NSN 2925-01-271-8727
NSN 5895-01-193-2821
NSN 6145-01-530-7171
NSN 6610-00-647-3830
NSN 6105-01-627-4227
NSN 6610-01-327-3187
NSN 4140-00-540-1129
NSN 6110-01-633-9660
NSN 5998-00-339-1271
NSN 6110-00-862-3097