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 5998-01-575-8834
NSN 6320-01-513-9166
NSN 2925-01-043-9786
NSN 5985-01-463-8562
NSN 5930-01-606-5707
NSN 5996-01-268-1483
NSN 5950-01-234-6441
NSN 5999-01-281-7359
NSN 4140-00-360-2457
NSN 5998-00-271-1555
NSN 5975-00-297-3940
NSN 5960-00-828-4704