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 5925-01-254-8169
NSN 6130-00-205-1714
NSN 5920-01-370-4376
NSN 5855-00-862-3345
NSN 5999-01-443-7166
NSN 6110-01-123-5125
NSN 5945-00-136-2507
NSN 6150-00-137-2851
NSN 6610-00-251-0369
NSN 5930-01-010-4553
NSN 6135-00-994-5021
NSN 6240-01-400-4212