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 5925-01-630-5817
NSN 5895-00-137-3547
NSN 6620-01-053-6650
NSN 5975-01-383-8971
NSN 7035-01-468-6532
NSN 5985-01-420-0944
NSN 5905-00-554-4325
NSN 2925-01-371-6853
NSN 5990-01-047-4083
NSN 6620-00-170-5296
NSN 5985-01-246-4604
NSN 5905-00-087-4552