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 6145-01-555-1404
NSN 5920-00-185-9587
NSN 6645-00-415-0884
NSN 5895-01-289-8154
NSN 5930-00-446-9125
NSN 6110-00-653-3936
NSN 6240-01-396-1809
NSN 5920-01-079-8924
NSN 6135-00-027-3914
NSN 5920-01-218-5742
NSN 5905-00-171-2158
NSN 5835-00-155-1379