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 6220-01-577-8652
NSN 6105-00-961-1668
NSN 5945-01-554-8608
NSN 6135-01-510-4663
NSN 5945-01-528-9418
NSN 6620-01-207-0667
NSN 6610-01-454-8386
NSN 5985-01-101-9016
NSN 6240-01-644-3602
NSN 6135-01-360-1620
NSN 5925-00-100-5760
NSN 6150-01-194-1584