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 5965-01-451-2481
NSN 6105-01-521-6166
NSN 6320-01-359-3921
NSN 5935-01-582-0909
NSN 5998-00-094-7480
NSN 6220-01-386-6172
NSN 6110-01-145-9982
NSN 5920-01-057-0593
NSN 5975-01-275-2767
NSN 5996-01-251-3394
NSN 6610-01-592-4150
NSN 5925-00-364-7969