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 6130-01-090-3460
NSN 5920-01-084-6475
NSN 5925-01-541-9251
NSN 6130-01-258-1134
NSN 4140-00-983-8048
NSN 5960-00-170-4596
NSN 2925-01-099-6149
NSN 5960-01-515-4791
NSN 6145-01-076-3699
NSN 5930-01-526-0496
NSN 6105-01-193-7903
NSN 5855-00-292-5086