replacement latch for sliding glass door

Having difficulty identifying this part number and manufacturer to replace. 16 year old sliding glass door - latch is no longer staying up in unlocked position and gravity can make the latch fall to locked position.

Part Measurements:
4 5/8" length
.75" width
1 3/8" depth (goes into slider and is flush with door)

We mistakenly ordered Item # 82-214. Length and Width are okay, but new part is too deep.

Thanks for your help!