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 5915-00-820-8511
NSN 6610-01-235-5566
NSN 6220-01-420-8375
NSN 5935-01-476-9268
NSN 2925-01-231-6312
NSN 5855-01-085-5354
NSN 5855-01-147-6024
NSN 6620-00-905-6590
NSN 5965-01-312-1630
NSN 5915-01-068-6409
NSN 6645-01-164-7650
NSN 5950-01-519-3948