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 6685-00-276-9889
NSN 5996-01-069-6806
NSN 6320-01-232-4664
NSN 5996-00-966-4602
NSN 5920-00-243-9506
NSN 6135-01-310-9866
NSN 5960-01-130-6413
NSN 5999-01-122-5627
NSN 5915-01-601-0645
NSN 5930-01-439-3520
NSN 5996-01-146-5765
NSN 5985-01-309-6021