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SMP LTD - Commercial Diving Equipment & Hyperbaric Chambers

Thread Insert Testing Block Kit

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Thread Insert Testing Block Kit

NOTE: Testing of the inserts should be performed once a year or whenever damage is suspected.
Thread Insert Testing Block Kit

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Kirby Morgan Commercial Diving Helmets
Kirby Morgan Genuine Parts
Thread Insert Testing Block Kit
Ref: 525-115
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When testing the thread inserts, or when removing and replacing the port retainer, it is crucial that the KMDSI recommended torque specs be followed when tightening the port retainer screws. Any over torque of a screw greater than "12" inch pounds can result in serious damage to the surrounding fiber glass in the port area. This can lead to loosening of the port retainer and in extreme instances to flooding of the mask.


Do not attempt to install new thread inserts in the mask frame for the port retainer screws by yourself. If the installation is done improperly, the port retainer can come loose and the mask could flood resulting in drowning. Fiberglass and insert repairs should be only be completed by technicians specifically trained and certified in these procedures.

Submarine Manufacturing are an authorised Kirby Morgan Helmet Training & Helmet Maintenance & Repair facility.  If you have any uncertainties when it comes to servicing and repairing your Kirby Morgan diving helmets, please contact us.   

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