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 6105-00-171-6521
NSN 6685-00-036-2282
NSN 5855-00-862-3345
NSN 6320-01-067-0474
NSN 5950-00-413-8125
NSN 5985-01-450-8230
NSN 5905-00-456-1905
NSN 5990-00-110-1153
NSN 2925-00-391-0331
NSN 5998-01-528-2483
NSN 6135-01-630-7662
NSN 6130-00-150-7294