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 6145-01-204-4869
NSN 6650-00-067-3572
NSN 6130-00-354-0251
NSN 5950-00-555-2881
NSN 6105-01-350-5793
NSN 5915-00-815-3209
NSN 5975-01-356-1664
NSN 6105-00-231-4370
NSN 5920-01-531-1586
NSN 5925-00-948-6027
NSN 6645-01-068-6052
NSN 2925-01-032-3814