Special shape
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 5905-01-322-4901
NSN 5925-00-130-2586
NSN 5835-01-384-3206
NSN 2925-01-055-7607
NSN 5975-01-055-2290
NSN 5965-00-831-2134
NSN 5895-00-797-9575
NSN 6645-01-211-6502
NSN 6150-01-337-5098
NSN 6220-01-115-6735
NSN 6240-00-891-8586
NSN 6145-00-669-6795