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 5895-00-704-1602
NSN 5965-00-448-9923
NSN 6130-00-267-9970
NSN 6240-00-072-9966
NSN 5835-01-089-7615
NSN 6645-00-166-7926
NSN 5910-00-203-3736
NSN 5930-01-197-7372
NSN 5950-00-010-3010
NSN 6240-01-074-5504
NSN 5975-01-167-8598
NSN 5975-01-054-1834