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 7035-01-585-2016
NSN 6320-00-098-2858
NSN 6650-01-443-1476
NSN 6145-01-186-7734
NSN 5905-01-232-4707
NSN 5990-00-144-3243
NSN 5999-01-027-1252
NSN 6135-01-322-4655
NSN 6645-01-074-8024
NSN 5855-01-360-6650
NSN 5920-01-142-3606
NSN 6610-01-046-1117