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 6645-01-007-5295
NSN 5930-01-165-1038
NSN 5960-00-487-7199
NSN 6145-01-351-4292
NSN 6320-01-006-6138
NSN 5915-01-367-6207
NSN 5965-01-312-6912
NSN 5915-01-013-8995
NSN 5905-00-835-6441
NSN 5950-01-097-6406
NSN 6685-00-261-9858
NSN 5905-01-065-2938