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 6135-01-485-1227
NSN 5975-01-039-3949
NSN 5895-01-460-7594
NSN 6645-00-841-0026
NSN 6110-01-046-9531
NSN 7035-01-620-5268
NSN 5895-01-367-7651
NSN 5975-00-355-4056
NSN 6150-01-218-4213
NSN 5975-00-223-5191
NSN 5985-01-545-9315
NSN 5960-01-087-7138