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 5950-01-304-9128
NSN 6105-01-516-8000
NSN 6320-01-228-2380
NSN 6685-00-540-8929
NSN 5905-00-125-3517
NSN 6685-00-753-7668
NSN 6130-01-400-1122
NSN 5905-01-098-9780
NSN 5930-01-147-5693
NSN 6220-01-590-1088
NSN 6620-01-376-3744
NSN 6240-01-649-4420