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 5895-01-516-4078
NSN 5950-01-285-5144
NSN 6240-01-231-4184
NSN 5965-01-063-7894
NSN 5975-01-520-8324
NSN 5945-00-099-9857
NSN 5998-00-146-5340
NSN 6685-00-455-9941
NSN 5905-01-432-3059
NSN 6650-01-487-9454
NSN 5945-01-255-6333
NSN 5990-01-167-7043