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 5920-01-135-5486
NSN 5985-01-339-3102
NSN 6240-01-352-3642
NSN 2925-00-474-4990
NSN 5998-00-322-3417
NSN 6150-00-251-3805
NSN 6685-00-287-6596
NSN 6240-00-820-1705
NSN 5835-01-652-4959
NSN 5950-01-630-5398
NSN 6320-00-194-4252
NSN 5990-01-140-5497