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 5985-01-335-8514
NSN 5960-00-193-6867
NSN 5945-01-506-3074
NSN 6320-00-731-6134
NSN 5930-00-398-7477
NSN 5998-01-446-6685
NSN 6650-01-100-3185
NSN 6610-00-019-1538
NSN 5895-01-472-4128
NSN 6610-01-307-3192
NSN 5945-01-492-6208
NSN 5910-00-266-8438