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 6645-00-474-5689
NSN 6645-01-091-0009
NSN 5975-01-077-7119
NSN 6220-01-509-8035
NSN 5996-01-106-2763
NSN 5965-01-029-5222
NSN 7035-00-140-0474
NSN 5985-01-125-9657
NSN 5925-00-150-1072
NSN 6645-00-200-2324
NSN 6150-00-643-0460
NSN 5999-01-100-3665