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 6150-00-241-2184
NSN 5960-01-575-7818
NSN 6135-01-219-8612
NSN 5950-00-240-4582
NSN 6110-00-114-0868
NSN 6130-01-630-1870
NSN 6130-01-296-5021
NSN 5920-01-068-3135
NSN 5975-01-344-1637
NSN 6610-01-007-0268
NSN 5998-01-386-6271
NSN 5996-01-337-5172