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 5835-01-281-1655
NSN 6650-00-322-0667
NSN 6320-00-139-1090
NSN 7035-01-027-2259
NSN 6610-00-881-5060
NSN 5960-01-535-1743
NSN 5996-01-579-4849
NSN 6145-01-389-9447
NSN 6620-01-556-1399
NSN 6650-01-529-6721
NSN 6240-00-351-8564
NSN 6220-00-099-9192