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 6145-01-614-9381
NSN 6645-00-232-4070
NSN 6110-00-271-9928
NSN 5965-00-825-6734
NSN 5935-01-643-5688
NSN 6610-00-229-6742
NSN 5905-01-267-4737
NSN 5920-00-822-2327
NSN 5855-01-606-9511
NSN 5985-00-194-1559
NSN 5910-00-139-2034
NSN 5920-00-068-8251