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 6110-01-204-1270
NSN 5895-01-181-2419
NSN 5910-00-455-8741
NSN 5910-01-615-5388
NSN 5935-01-149-3079
NSN 5985-01-573-2856
NSN 5855-01-232-9440
NSN 5945-00-413-2659
NSN 5985-00-932-1630
NSN 5950-00-072-7199
NSN 6620-00-782-0337
NSN 5999-00-411-9498