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 5895-01-381-1976
NSN 6105-01-652-9513
NSN 5835-01-117-6124
NSN 5960-00-273-3260
NSN 5998-01-026-9463
NSN 5855-01-041-9392
NSN 5996-01-521-0367
NSN 5960-01-260-7027
NSN 5985-01-091-0655
NSN 5930-01-080-0835
NSN 6240-01-520-6925
NSN 5975-01-158-7483