OEM Key Locking Insert: Extra Heavy Wall, 4 Keys, 3/4"-16 Int Thrd Sz, 1 1/4"-12 Ext Thrd Sz
The APPROVED VENDOR Key Locking Insert is a Mil. Spec. key-locking insert with an extra heavy wall, supplied in a 10-pack (MPN 217-077541). It features 4 keys, a 3/4"-16 internal thread size, a 1 1/4"-12 external…
SKU 3G-OTH-531773
Also listed as: 217077541 · 217 077541
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. key-locking insert with an extra heavy wall, supplied in a 10-pack (MPN 217-077541). It features 4 keys, a 3/4"-16 internal thread size, a 1 1/4"-12 external thread size, and a plain finish. The insert is made from 18-8 material, meets industry standard MS51832-209L, and requires a 1-11/64 in drill bit with a compatible tap size of 1-1/4"-12.
Frequently Asked Questions
What is an APPROVED VENDOR key locking insert used for?
This extra heavy wall key locking insert (MPN 217-077541) repairs or reinforces stripped threads in metal assemblies, meeting Mil. Spec. MS51832-209L. It is used in aerospace, defense, and industrial applications where a permanent, high-strength thread repair is required. The 4 keys lock the insert in place to prevent rotation under load.
What are the specifications of the APPROVED VENDOR key locking insert 217-077541?
This 10-pack insert has a 3/4"-16 internal thread and a 1 1/4"-12 external thread. It features an extra heavy wall, 4 keys, 18-8 material, plain finish, and meets MS51832-209L. Required drill bit size is 1-11/64 in, compatible tap size is 1-1/4"-12, with external thread fit 2A and internal fit 3B.
Where to buy APPROVED VENDOR key locking inserts worldwide?
3G Electric supplies the APPROVED VENDOR key locking insert (MPN 217-077541) to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this Mil. Spec. thread repair insert.
How to install an extra heavy wall key locking insert?
Drill the hole to 1-11/64 in, tap it to 1-1/4"-12 thread, then screw the insert in using a compatible installation tool. The 4 keys lock into the parent material to prevent rotation. Ensure the insert is flush or slightly below the surface. Use a thread locker if specified by the application.
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.