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 7035-00-931-9415
NSN 6645-00-692-2809
NSN 5960-00-733-8256
NSN 7035-01-250-5744
NSN 5975-01-575-0012
NSN 7035-00-803-3056
NSN 5895-00-136-4960
NSN 5915-01-209-8891
NSN 5996-00-437-3668
NSN 5945-01-101-7784
NSN 5960-01-181-2143
NSN 6610-00-137-3959