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 5996-00-732-2552
NSN 6130-00-165-3858
NSN 6110-01-396-6087
NSN 6135-01-054-2462
NSN 6145-01-013-3097
NSN 5905-00-340-9903
NSN 5998-01-452-0410
NSN 5855-01-573-4289
NSN 5855-01-122-9418
NSN 5915-01-080-6661
NSN 6145-01-438-3748
NSN 5990-00-230-8981