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S145-6 6 lb Series 145 Balance Spring

Hello I'm a contractor in California. I inspected a window today and pulled these out. Both casings the same size approx 4"x 1" However the coil stamp pound indication was different. In one I pulled out a 4lb and 6lb coil. The other had both 5lb coils. The window that had the 4 and 6 lb coil wasn' ... (cont.)

I am attempting to replace some constant force balances. I believe they are Series 145 Balance Springs based off the design of the tongue and the type of carrier. I need multiple sizes of coils x10 Units stamped #3 x6 Units stamped #4 x8 Units stamped #5 x4 Units stamped #6

Hello I'm in need of (2) 15-102 double side load carriers and (4) 145-6 springs. My original springs have no slot, just a step. One has a 6 stamped on it, the other one has no # on it. What do you suggest I order for the second spring? And, is your slotted spring compatible with my step-only spring? ... (cont.)

The coil that is not broken has a 6 on it. The other smaller diameter broken coil has no number. I'm not sure where the piece that broke off went. I also wanted to know how to reinstall and connect coils.

I'm a handyman who has a customer with broken coil springs and carriers. I need 4 of the carrier 15-102, and 10 springs. But I'm not sure which weight springs. The windows are single hung vinyl, double glazed, and the outside dimension of the operable vinyl sash is 29.5 x 32.5. I neglected to we ... (cont.)

Might you help with this

Thank you in advance for your help! I want to replace the coil balances here for what I believe is a "sideload" system, but I'm unsure of what lb springs I need. In the picture, I think there is a six stamped faintly into the end of the spring, but I'm not sure if it might be a 9 (and I'm just ... (cont.)

I work on military housing throughout the country. I'm having trouble replacing these coil balances. The springs are stamped with 3,4,5 or 6. Any ideas?