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 5975-00-629-1193
NSN 5999-01-512-3060
NSN 5950-01-004-5546
NSN 5950-00-633-8366
NSN 5905-00-257-9570
NSN 5990-01-386-5561
NSN 5950-01-645-8814
NSN 6240-00-505-6099
NSN 6685-00-123-2552
NSN 6135-01-496-2352
NSN 5996-00-918-6472
NSN 6135-01-104-3790