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 2925-01-574-4413
NSN 5965-01-329-7890
NSN 5915-01-267-5141
NSN 5998-01-516-9145
NSN 5996-01-065-0939
NSN 5945-01-183-6710
NSN 5855-01-613-6808
NSN 5855-01-323-5394
NSN 5965-01-125-5367
NSN 6320-01-054-3046
NSN 5950-01-328-8983
NSN 5945-01-504-9722