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 5996-00-849-3833
NSN 5996-00-329-2886
NSN 6150-00-833-8148
NSN 5910-01-441-4491
NSN 5999-00-161-0620
NSN 5985-00-107-0574
NSN 5965-01-050-8447
NSN 5910-01-487-6757
NSN 6620-00-439-2442
NSN 5925-00-050-8501
NSN 5996-01-424-8650
NSN 6320-00-186-6452