OEM Key Locking Insert: Thin Wall, 4 Keys, 5/16"-24 Int Thrd Sz, 7/16"-14 Ext Thrd Sz
The APPROVED VENDOR Key Locking Insert is a thin-wall, 4-key, plain-finish Mil. Spec. insert (MS51831-108) with a 5/16"-24 internal thread and 7/16"-14 external coarse thread, supplied in a 10-pack. Made from 18-8…
SKU 3G-OTH-531724
Also listed as: 217076523 · 217 076523
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, 4-key, plain-finish Mil. Spec. insert (MS51831-108) with a 5/16"-24 internal thread and 7/16"-14 external coarse thread, supplied in a 10-pack. Made from 18-8 stainless steel with 2A external and 3B internal thread fits, it is compatible with a 7/16"-14 tap size. 3G Electric interprets this demand and delivers it across 14 industrial departments — with specialist depth in combustion, pumps and controls as an authorised distributor — ensuring you get the right answer, not just a catalog.
Frequently Asked Questions
What is an APPROVED VENDOR Key Locking Insert used for?
This thin-wall, 4-key insert repairs or reinforces tapped threads in metal assemblies, meeting Mil. Spec. MS51831-108. It is commonly used in aerospace, defense, and industrial equipment where a secure, removable thread is required. 3G Electric supplies this insert across 14 industrial departments, with specialist depth in combustion, pumps and controls.
What are the specifications of the APPROVED VENDOR Key Locking Insert 217-076523?
This 10-pack insert has a 5/16"-24 internal thread and 7/16"-14 external coarse thread, with 2A external and 3B internal thread fits. It is made from 18-8 stainless steel, has a plain finish, and is compatible with a 7/16"-14 tap. It meets MS51831-108 standards.
Where to buy APPROVED VENDOR Key Locking Inserts worldwide?
3G Electric supplies the APPROVED VENDOR Key Locking Insert (MPN 217-076523) worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this Mil. Spec. insert to your facility. Contact us for availability and lead time.
How to install an APPROVED VENDOR Key Locking Insert?
Installation requires tapping a hole to 7/16"-14, then driving the insert using a compatible tool until the keys engage. The 18-8 stainless steel body provides corrosion resistance. For best results, follow MS51831-108 guidelines. 3G Electric can advise on tooling and application support.
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.