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 5855-01-617-5936
NSN 5998-00-156-3119
NSN 5999-01-656-5582
NSN 5950-01-381-9492
NSN 5895-00-243-2699
NSN 6145-01-486-1367
NSN 7035-00-285-3393
NSN 2925-01-267-1598
NSN 5975-00-553-7151
NSN 2925-01-178-0063
NSN 5895-01-398-5381
NSN 5925-01-528-9481