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 5975-00-698-9853
NSN 5855-00-100-9003
NSN 4140-01-271-8528
NSN 5935-01-153-0198
NSN 5930-01-347-3252
NSN 5985-01-344-6488
NSN 6610-00-292-9895
NSN 5930-01-611-0136
NSN 5998-00-069-6191
NSN 6650-01-264-4415
NSN 5950-01-164-2489
NSN 5990-01-417-4402