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 5920-00-771-7280
NSN 5905-01-521-7216
NSN 6620-00-153-0982
NSN 5915-01-359-1429
NSN 6220-01-200-6461
NSN 4140-01-434-6825
NSN 5905-01-472-9949
NSN 5950-01-163-1877
NSN 5855-00-323-0967
NSN 5950-01-010-1869
NSN 5930-00-752-4599
NSN 5935-00-670-7583