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 7035-00-887-4674
NSN 6220-01-411-8018
NSN 5996-00-728-3274
NSN 5925-00-991-8722
NSN 5945-01-545-8594
NSN 6130-01-119-3976
NSN 6650-01-065-7014
NSN 7035-01-390-1132
NSN 2925-01-510-9378
NSN 6130-01-424-0360
NSN 5920-00-527-9473
NSN 6610-01-322-0569