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 5996-01-061-6894
NSN 5935-00-478-2613
NSN 5935-01-604-5196
NSN 6150-01-033-4502
NSN 5990-01-078-1294
NSN 5945-01-185-9376
NSN 4140-01-555-8190
NSN 5950-01-148-5268
NSN 6620-00-433-9438
NSN 6645-01-280-4373
NSN 5996-00-276-5480
NSN 5935-00-081-1506