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 5975-00-201-8826
NSN 6135-01-054-2462
NSN 5935-01-280-3237
NSN 5990-01-281-0018
NSN 5915-00-069-0402
NSN 5925-01-367-2519
NSN 6645-00-527-7258
NSN 6620-01-065-4527
NSN 2925-00-996-2167
NSN 6320-01-265-0665
NSN 6145-01-343-1835
NSN 5998-00-930-9399