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 6320-00-925-0558
NSN 5945-00-125-5499
NSN 5996-00-292-2624
NSN 5950-01-367-1870
NSN 5925-01-085-4355
NSN 6110-01-397-8218
NSN 6240-01-304-4741
NSN 5965-01-241-0553
NSN 6220-01-378-3488
NSN 6620-01-166-4893
NSN 6645-01-081-6399
NSN 5945-01-326-7545