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 6685-00-494-1407
NSN 5835-01-071-1689
NSN 6110-00-893-9802
NSN 6650-00-991-8436
NSN 5960-01-544-1273
NSN 5910-01-482-8640
NSN 6110-00-578-7243
NSN 5996-00-456-0895
NSN 6685-00-522-1513
NSN 5950-00-096-7238
NSN 5945-01-416-7374
NSN 6620-01-012-2852