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 6105-00-288-5872
NSN 6645-00-285-8781
NSN 6110-00-635-3853
NSN 5855-01-543-5011
NSN 5910-00-186-9524
NSN 5965-01-525-4597
NSN 6620-01-401-5356
NSN 6610-01-444-0953
NSN 5985-01-548-2402
NSN 5998-01-224-7900
NSN 5930-00-919-9308
NSN 7035-01-588-6004