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 6685-01-353-5888
NSN 6130-00-684-6773
NSN 5835-01-125-6676
NSN 5999-01-007-2127
NSN 5945-01-121-7829
NSN 6240-00-020-4709
NSN 5895-01-607-0782
NSN 6130-01-017-2760
NSN 5975-01-433-2169
NSN 5985-00-019-3612
NSN 5905-00-163-9582
NSN 5950-00-843-1977