Maintenance Airframe; Maintenance Powerplant
Human-Machine Interface; Other / Unknown
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Human Factors
I received 3 pick slips from my coworker; with 3 parts left on a table. He told me that these parts needed to be sent to ZZZ. I proceeded to look at the pick slips for any kind of Hazmat tag; and none of them had Hazmat written on the pick slip. I packed the 3 parts into a box; created an [order] and left the box for the next shift because the flight was later that day. I covered this in my turn over and told my coworker to send the box to ZZZ on [flight]. One of those pick-slipped parts that I placed in the box was a portable fire extinguisher; a HAZMAT component. I know we need to be careful with all parts we send to avoid sending hazmat on an airplane. But for me; what I think we should be careful too with the information on pick slips we get from other bases. Normally; Hazmat pick slips have in the remark: 'HAZMAT;' so we are reminded that it can't be sent as COMAT (Company Material). And this pick slip only had a remark saying 'This is needed for tonight;' and that's why I thought this was a regular part. Another thing we need to be careful of is where we get the part from. We have a special section for Hazmat parts in the stockroom; but this time the part was handed to me outside of that section. I packed the part in the box without looking for where the part came from.
Maintenance technician reported that an incorrectly labeled package resulted in a Hazmat shipping violation.