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 5965-00-652-5661
NSN 6130-01-518-9690
NSN 5930-01-525-8279
NSN 5935-00-647-4020
NSN 6110-01-221-4593
NSN 5930-01-513-4883
NSN 5996-00-218-1123
NSN 5975-00-960-9604
NSN 6620-00-876-0776
NSN 5996-01-198-4583
NSN 5925-01-175-0858
NSN 5915-01-090-0478