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 5960-00-852-8898
NSN 5855-01-570-3195
NSN 6320-01-441-1371
NSN 5915-01-006-4125
NSN 5945-01-431-8124
NSN 5965-00-976-9465
NSN 5895-01-090-0567
NSN 6650-01-657-7864
NSN 5996-00-277-7384
NSN 5975-01-255-8914
NSN 5985-01-158-7487
NSN 5930-01-481-5426