OEM Key Locking Insert: Heavy Wall, 4 Keys, 3/8"-24 Int Thrd Sz, 9/16"-12 Ext Thrd Sz
The APPROVED VENDOR Key Locking Insert is a Mil. Spec. heavy-wall insert with 4 keys, 3/8"-24 internal thread size, and 9/16"-12 external thread size. It meets MS51831-105L standards, is made of 18-8 material, and…
SKU 3G-OTH-531647
Also listed as: 217077504 · 217 077504
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 Mil. Spec. heavy-wall insert with 4 keys, 3/8"-24 internal thread size, and 9/16"-12 external thread size. It meets MS51831-105L standards, is made of 18-8 material, and comes in a plain finish, 10 PK.
Frequently Asked Questions
What is a key locking insert used for?
A key locking insert is used to repair or reinforce tapped threads in metal assemblies, especially in aerospace, defense, and industrial applications. The APPROVED VENDOR heavy-wall insert with 4 keys provides a permanent thread that resists loosening under vibration, meeting Mil. Spec. MS51831-105L standards.
What are the specifications of the APPROVED VENDOR key locking insert?
This heavy-wall insert has a 3/8"-24 internal thread size and a 9/16"-12 external thread size, with 4 keys and a plain finish. It is made of 18-8 material, meets MS51831-105L standards, and comes in a 10 PK. External thread fit is 2A; internal thread fit is 3B.
Where to buy APPROVED VENDOR key locking inserts worldwide?
3G Electric supplies the APPROVED VENDOR key locking insert (MPN 217-077504) to customers worldwide. We handle full logistics, customs clearance, and delivery for global orders, ensuring you receive genuine Mil. Spec. inserts that meet MS51831-105L standards.
How to install a key locking insert?
Installation requires drilling to the compatible tap size (9/16"-12), tapping the hole, then driving the insert using a key locking insert tool until it sits below the surface. The 4 keys are then set to lock the insert in place. Always follow the manufacturer's instructions for torque and depth.
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.