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 5905-01-125-1171
NSN 5960-01-125-2356
NSN 5925-00-186-8669
NSN 6650-01-607-2620
NSN 6320-01-214-0350
NSN 6620-00-004-1374
NSN 6145-01-432-2440
NSN 6220-00-396-0039
NSN 5950-00-299-7851
NSN 6220-01-340-9278
NSN 5905-01-130-5120
NSN 5975-01-016-1805