Need help with window latch

Quick Learner

Oct 2, 2025 7:56 am

Hoping you can help identify this latch, or point me in the right direction for an alternative.
If it helps, it is from an early (est) 1970s aluminum single pane window that would appear to use your 390 block and tackle balance, and the 18-009 top sash guide. Thanks.

5 user uploaded images

9 Replies

Lauren from SWISCO

Oct 8, 2025 8:57 am

Hello, thank you for posting,

Unfortunately I do not recognize this latch at first sight. Do you have any installed on the window that we can confirm the location? From there we can get a clearer idea if we can assist further. Thank you!

Quick Learner

Oct 8, 2025 10:21 am

Of course. I will not likely be back at that work site until Fri at earliest, but will send pics ASAP.
Thanks for your help.

Lauren from SWISCO

Oct 8, 2025 11:13 am

Great thank you! This thread will remain open.

Quick Learner

Oct 12, 2025 4:00 pm

Here are the photos. Please advise me asap.
Respectfully,
Doug

3 user uploaded images

Lauren from SWISCO

Oct 13, 2025 2:35 pm

Thank you,

Unfortunately we do not carry this exact latch, but we are researching to see if we can locate it for you. We will be in contact as soon as more information is available. Thank you for your patience!

In the meantime, compare the specifications of the 90-293 and 90-008 to see how they align.

Quick Learner

Oct 13, 2025 3:53 pm

Thanks for the quick reply, Lauren. Unfortunately, the referenced latches do not appear to have a similar configuration, and do not appear to be appropriate substitutes. Thanks also for searching for something I can use. I am waiting to order from Swisco the 20 balances and numerous other parts I need for these windows, but don't want to invest unnecessarily if I can't find some latches to work. I have looked at a few other sites with no luck (and neither as user friendly as Swisco!).
Please let me know even if you can not find something similar, so that I can make alternative plans.
Respectfully,
Doug

Lauren from SWISCO

Oct 15, 2025 9:07 am

Hi Doug,

We were able to locate a similar guide that we believe has a chance of working for you. We are bringing it in to our inventory. Only setback is that it is going to take a few weeks to come in and we do not have a diagram at this time.

I will notify you as soon as we have it up on our website with dimensions for your review. Thank you for your patience!

Lauren from SWISCO

Oct 23, 2025 1:36 pm

Hi Doug,

Thanks for your patience! Please see the new 90-230 lock. Compare the overall specifications below to see if this style aligns with your original.

Dimensions for 90-230