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 5945-01-411-4989
NSN 5910-00-569-8934
NSN 5935-01-151-4549
NSN 7035-01-258-7661
NSN 5945-00-721-3873
NSN 6610-01-455-4977
NSN 5835-01-352-7211
NSN 5985-01-025-0114
NSN 5950-01-530-2788
NSN 6110-01-359-4248
NSN 5920-01-069-9833
NSN 6685-00-246-2365