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 5915-00-168-4549
NSN 5935-01-088-4885
NSN 5915-01-469-1203
NSN 5930-00-586-7760
NSN 6150-01-534-3668
NSN 6610-01-130-8885
NSN 6135-01-502-8771
NSN 6220-00-149-0977
NSN 5999-01-237-2666
NSN 6650-01-138-8174
NSN 5855-00-451-5224
NSN 5895-01-344-7909