APPROVED VENDOR Key Locking Insert: Extra Heavy Wall, 4 Keys, 5/16"-24 Int Thrd Sz, 9/16"-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 PK. It features 4 keys, a 5/16"-24 internal thread size, a 9/16"-12 external thread size, and a…
SKU 3G-OTH-531738
Need installation or engineering help?
Ask a question
Product Description
The APPROVED VENDOR Key Locking Insert is a Mil. Spec. key-locking insert with an Extra Heavy Wall, supplied in a 10 PK. It features 4 keys, a 5/16"-24 internal thread size, a 9/16"-12 external thread size, and a plain finish. This inch-system insert is made from 18-8 material, meets MS51832-109L standards, and has a 2A external thread fit with a 3B internal thread fit.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is an APPROVED VENDOR Key Locking Insert used for?
This Mil. Spec. key-locking insert repairs or reinforces threads in metal assemblies, especially where vibration could loosen standard fasteners. The extra heavy wall and 4 keys provide high pull-out resistance. It is commonly used in aerospace, defense, and industrial equipment requiring MS51832-109L compliance.
What are the specifications of the APPROVED VENDOR 217-076535 Key Locking Insert?
This 10-pack insert has an extra heavy wall, 5/16\"-24 internal thread, 9/16\"-12 external thread, 4 keys, and a plain finish. It is made from 18-8 stainless steel, meets MS51832-109L, with 2A external and 3B internal thread fits. System of measurement is inch.
Where to buy APPROVED VENDOR Key Locking Inserts worldwide?
3G Electric supplies and delivers APPROVED VENDOR Key Locking Inserts worldwide. We handle full logistics and customs clearance for global orders. Contact us for availability and lead time on this MS51832-109L insert.
How to install an APPROVED VENDOR Key Locking Insert?
Installation requires tapping the hole to the compatible tap size (9/16\"-12), then driving the insert using a key-locking installation tool until the keys engage. Ensure the external thread fit is 2A and internal fit is 3B for proper locking. Follow standard Mil. Spec. procedures for best results.
Used in
Common applications for APPROVED VENDORAPPROVED VENDOR Products
3G Electric supplies APPROVED VENDOR mil. spec. key-locking inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









