OEM Key Locking Insert
The APPROVED VENDOR Key Locking Insert is a thin-wall, inch-system Mil. Spec. insert with 4 keys, 3/8"-24 internal thread size, and 1/2"-13 external thread size. It meets MS51831-109 standards, features 18-8…
SKU 3G-OTH-531799
Also listed as: 217076524 · 217 076524
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The APPROVED VENDOR Key Locking Insert is a thin-wall, inch-system Mil. Spec. insert with 4 keys, 3/8"-24 internal thread size, and 1/2"-13 external thread size. It meets MS51831-109 standards, features 18-8 material, 2A external and 3B internal thread fits, and is supplied as a plain, 10-pack.
Frequently Asked Questions
What is an APPROVED VENDOR Key Locking Insert used for?
This thin-wall key locking insert is used to repair or reinforce tapped threads in metal assemblies, particularly in aerospace and defense applications. It meets Mil. Spec. MS51831-109, providing a secure 18-8 stainless steel thread with 4 locking keys to prevent rotation under vibration.
What are the specifications of the APPROVED VENDOR Key Locking Insert 217-076524?
This insert has a 3/8"-24 internal thread and 1/2"-13 external thread, with 2A external and 3B internal thread fits. It is made of 18-8 stainless steel, has a thin wall, 4 keys, plain finish, and meets MS51831-109. Supplied as a 10-pack by APPROVED VENDOR.
Where to buy APPROVED VENDOR Key Locking Inserts worldwide?
3G Electric supplies APPROVED VENDOR key locking inserts worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us to source this MS51831-109 compliant insert in a 10-pack, with lead time on request.
How to install a thin-wall key locking insert?
Installation requires tapping the hole to the compatible tap size (1/2"-13), then driving the insert using a key locking insert tool until it is flush or slightly below the surface. The 4 keys lock into the parent material to prevent rotation. Use thread locking compound per Mil. Spec. guidelines.
OEM Products
3G Electric supplies OEM mil. spec. key-locking inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.