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 5930-00-866-0230
NSN 6220-01-253-3496
NSN 6610-01-446-7635
NSN 5950-01-569-7795
NSN 5855-01-615-8016
NSN 6150-01-446-7659
NSN 6610-01-168-7943
NSN 5945-01-292-5858
NSN 5945-01-627-8308
NSN 5915-00-197-8610
NSN 5935-01-364-5627
NSN 5985-01-468-3709