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 6150-00-538-1176
NSN 5985-01-278-6838
NSN 6110-01-532-3306
NSN 6645-01-213-1739
NSN 5985-00-980-0408
NSN 5990-00-435-5920
NSN 5999-01-152-3917
NSN 6220-01-508-6807
NSN 5895-00-263-3982
NSN 5920-00-152-4003
NSN 5930-00-078-3355
NSN 5950-01-591-3050