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 5835-01-327-6324
NSN 5985-01-442-6202
NSN 5996-01-425-2696
NSN 6135-01-343-1592
NSN 6685-01-602-9962
NSN 6320-01-519-8767
NSN 5985-01-217-3162
NSN 5950-01-142-0588
NSN 6685-01-312-5525
NSN 5975-01-195-3282
NSN 6150-01-433-3462
NSN 6130-01-167-3845