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 5910-00-958-4589
NSN 5855-01-110-9564
NSN 6320-01-532-6746
NSN 2925-00-149-0760
NSN 5965-01-063-7894
NSN 5975-01-607-7925
NSN 4140-01-480-3158
NSN 5965-01-380-1808
NSN 7035-01-627-8718
NSN 5855-01-562-6560
NSN 6610-01-333-9543
NSN 5925-00-446-2464