An active hazard mitigation device includes a reservoir containing thermal wax and a slider translatable from a safe position to an armed position. A conduit for flow of the thermal wax in a melted state extends from the thermal wax reservoir to a rear of the safe position of the slider. A BKNO.sub.3 pellet is disposed in a forward end of the slider. A lithium intermetallic thermal sensor is disposed adjacent the BKNO.sub.3 pellet when the slider is in an armed position. When the thermal wax expands, the slider moves from the safe position to the armed position under the lithium intermetallic thermal sensor. When the lithium intermetallic thermal sensor activates, heat from the lithium intermetallic thermal sensor ignites the BKNO.sub.3 pellet in the slider and thereby produces gas and heat that ignites energetic material disposed proximate to the BKNO.sub.3 pellet.

An active hazard mitigation device includes a reservoir containing thermal wax and a slider translatable from a safe position to an armed position. A conduit for flow of the thermal wax in a melted state extends from the thermal wax reservoir to a rear of the safe position of the slider. A BKNO.sub.3 pellet is disposed in a forward end of the slider. A lithium intermetallic thermal sensor is disposed adjacent the BKNO.sub.3 pellet when the slider is in an armed position. When the thermal wax expands, the slider moves from the safe position to the armed position under the lithium intermetallic thermal sensor. When the lithium intermetallic thermal sensor activates, heat from the lithium intermetallic thermal sensor ignites the BKNO.sub.3 pellet in the slider and thereby produces gas and heat that ignites energetic material disposed proximate to the BKNO.sub.3 pellet.

An arrangement for locking arming conditions to prevent unintentional arming of SAI-units of ammunition units when the ammunition unit is subjected to external threats. A ring shaped shape memory alloy is provided in cooperation with a recess in a plunger arranged in connection to the SAI-unit and a fixed recess to prevent the plunger from axial movement when subjected to heating by changing the shape of the essentially ring shaped shape memory alloy to lock the plunger relative to the fixed recess.

An arrangement for locking arming conditions to prevent unintentional arming of SAI-units of ammunition units when the ammunition unit is subjected to external threats. A ring shaped shape memory alloy is provided in cooperation with a recess in a plunger arranged in connection to the SAI-unit and a fixed recess to prevent the plunger from axial movement when subjected to heating by changing the shape of the essentially ring shaped shape memory alloy to lock the plunger relative to the fixed recess.

An arrangement for locking arming conditions to prevent unintentional arming of SAI-units of ammunition units when the ammunition unit is subjected to external threats. A ring shaped shape memory alloy is provided in cooperation with a recess in a plunger arranged in connection to the SAI-unit and a fixed recess to prevent the plunger from axial movement when subjected to heating by changing the shape of the essentially ring shaped shape memory alloy to lock the plunger relative to the fixed recess.

An arrangement for locking arming conditions to prevent unintentional arming of SAI-units of ammunition units when the ammunition unit is subjected to external threats. A ring shaped shape memory alloy is provided in cooperation with a recess in a plunger arranged in connection to the SAI-unit and a fixed recess to prevent the plunger from axial movement when subjected to heating by changing the shape of the essentially ring shaped shape memory alloy to lock the plunger relative to the fixed recess.