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 6135-01-422-1440
NSN 6610-00-242-3160
NSN 5925-01-549-9760
NSN 6150-01-074-2577
NSN 5925-01-419-0832
NSN 6130-00-032-0378
NSN 6240-00-614-9679
NSN 6685-01-231-9583
NSN 5910-00-900-1209
NSN 5930-01-208-1860
NSN 5925-01-193-7249
NSN 5985-01-464-0410