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 5985-01-331-5119
NSN 7035-01-502-3830
NSN 5910-00-104-7260
NSN 6110-01-024-9428
NSN 5996-00-125-4570
NSN 5945-01-346-2982
NSN 2925-01-486-7277
NSN 6610-01-508-6272
NSN 5975-01-180-8346
NSN 5905-00-270-1943
NSN 5996-00-539-7197
NSN 5915-01-416-1528