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 5920-00-655-1154
NSN 5965-01-549-0176
NSN 6150-01-600-3922
NSN 5975-01-440-0493
NSN 5855-01-246-4274
NSN 5920-01-338-4671
NSN 6145-00-246-9776
NSN 5905-01-492-6248
NSN 6130-01-470-5970
NSN 6110-01-650-9035
NSN 5930-01-579-5865
NSN 5960-01-279-0985