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 5910-01-298-5219
NSN 5915-01-391-7830
NSN 5895-01-634-0630
NSN 5996-00-106-2241
NSN 5930-00-008-4552
NSN 5950-00-404-2503
NSN 5990-01-493-4039
NSN 5950-01-139-5013
NSN 7035-01-364-0286
NSN 6150-01-298-8609
NSN 6110-01-620-7166
NSN 5905-00-094-6850