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 2925-01-620-9673
NSN 5965-01-502-3650
NSN 5990-01-478-8638
NSN 6240-00-917-3724
NSN 5960-01-154-1833
NSN 5950-00-698-2773
NSN 5920-01-502-5838
NSN 6320-01-434-6861
NSN 6240-01-371-4263
NSN 5920-00-008-7134
NSN 5920-00-908-1929
NSN 7035-01-122-1264