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 5835-00-891-2784
NSN 5930-00-269-4996
NSN 5985-00-802-7658
NSN 6645-00-230-4396
NSN 5835-00-665-3395
NSN 6645-01-513-0117
NSN 5930-01-207-0082
NSN 5985-00-194-6012
NSN 5960-01-438-0245
NSN 6650-00-147-8765
NSN 4140-01-515-8128
NSN 6150-01-034-3290