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 5975-00-372-6265
NSN 6105-00-479-3830
NSN 6610-01-171-0319
NSN 5855-01-450-8820
NSN 4140-01-645-0967
NSN 5905-01-611-8248
NSN 5905-00-072-5994
NSN 6150-01-088-7643
NSN 6145-01-432-2440
NSN 2925-01-088-3612
NSN 5998-01-432-0101
NSN 5935-01-556-4333