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 6320-01-425-1417
NSN 6130-01-525-7519
NSN 7035-01-183-7550
NSN 6130-01-396-2620
NSN 6645-01-499-7385
NSN 5945-01-423-7966
NSN 6610-00-155-1334
NSN 6150-01-141-7340
NSN 5835-01-537-1228
NSN 6685-00-285-3272
NSN 5996-01-631-8490
NSN 6620-01-026-7371