Core material bismuth or tin or lead; core included; casing material brass qq-b-626 alloy 360; heat number stamped on core included; blowline type threaded
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 5985-01-112-0747
NSN 5965-01-629-8484
NSN 5855-00-631-4565
NSN 6610-00-911-6492
NSN 2925-01-614-3634
NSN 5990-00-021-9409
NSN 5960-01-553-4557
NSN 6130-01-425-4733
NSN 5935-01-625-6542
NSN 2925-01-579-1010
NSN 6135-01-183-8993
NSN 5985-01-368-9378