Coil Spring

Question

I have this old coil sprint that labelled 5K.  What does it mean?  Does it mean 5kg = 11lb?    Is that correct?  Please see pictures.

Tom · Accepted Answer

Your old shoe looks like our 15-177, which means the spring you want is our Series 152. You can ignore the "K" in the stamp, it doesn't mean anything important. If yours is marked with 5 then that means each coil supports 5 pounds. You want the S152-5.