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 5975-01-634-0678
NSN 5910-01-348-5767
NSN 6620-01-659-8887
NSN 7035-01-007-1802
NSN 6650-01-364-8504
NSN 6145-01-630-0926
NSN 6110-01-462-4716
NSN 5930-01-606-8941
NSN 6685-00-276-9889
NSN 6610-00-614-7943
NSN 6240-01-530-0438
NSN 6320-01-631-7828