Core material: sand
An externally threaded cylindrical item, usually containing a fusible core, or a tapered smooth finished press-in insert made entirely of metallic eutectic substance. If without core, the item may be machined internally or have provisions to accomodate same. It is a safety device for aircraft wheels (prevents heat induced tire explosion), boilers, compressors, and similar equipment.
NSN 6145-01-406-4201
NSN 5930-01-135-8179
NSN 6240-01-464-2284
NSN 5855-00-198-3197
NSN 6150-01-142-2709
NSN 5960-01-048-8228
NSN 5975-00-964-6673
NSN 5998-01-382-1823
NSN 2925-01-320-6512
NSN 5996-01-633-7979
NSN 5925-00-106-7257
NSN 6320-01-103-1655