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 2925-01-577-9269
NSN 5975-01-195-6760
NSN 5935-01-381-0824
NSN 6610-01-423-7481
NSN 2925-00-371-2285
NSN 5975-01-314-9521
NSN 6220-01-298-2593
NSN 5935-00-856-0418
NSN 6685-01-590-5283
NSN 5915-01-227-5581
NSN 5930-01-423-2513
NSN 6135-00-505-0679