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 5960-01-577-0628
NSN 6320-01-280-3218
NSN 2925-00-993-7715
NSN 6105-00-077-8388
NSN 5965-00-558-3684
NSN 4140-01-586-9605
NSN 5975-01-615-6137
NSN 5920-00-828-0148
NSN 6685-00-246-5114
NSN 5996-00-115-1188
NSN 5996-00-971-6838
NSN 4140-01-140-9727