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 5975-00-817-1781
NSN 5855-01-088-8700
NSN 7035-00-108-4421
NSN 2925-01-291-9997
NSN 6150-01-247-5256
NSN 6130-01-577-3873
NSN 5975-00-840-5844
NSN 5930-00-203-5999
NSN 5925-01-008-8520
NSN 6645-00-634-9317
NSN 5950-00-248-9198
NSN 5999-01-085-4305