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 5920-00-914-2707
NSN 5985-01-381-3192
NSN 6610-00-239-8613
NSN 5950-01-479-0032
NSN 6135-00-223-9563
NSN 6145-01-125-6361
NSN 5910-01-556-4278
NSN 5965-01-221-0569
NSN 5835-00-398-9678
NSN 5835-00-926-0195
NSN 6220-00-087-0284
NSN 5999-00-883-5921