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 5999-01-634-0576
NSN 6150-01-418-0134
NSN 2925-01-168-6253
NSN 5996-01-376-9406
NSN 5855-01-448-9794
NSN 7035-01-218-6960
NSN 5925-01-115-0209
NSN 5835-01-321-2906
NSN 6610-01-323-0901
NSN 4140-00-232-9859
NSN 2925-00-441-8252
NSN 5999-01-547-3591