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 5835-00-126-0990
NSN 5950-00-707-1408
NSN 6620-01-106-3553
NSN 6145-01-082-3384
NSN 5998-01-629-0846
NSN 6685-01-320-3344
NSN 6645-01-528-7152
NSN 5855-01-602-9653
NSN 4140-00-146-3269
NSN 5950-01-091-9436
NSN 6620-01-519-2628
NSN 4140-01-116-8141