OEM Key Locking Insert: Heavy Wall, 4 Keys, M20-1.50 Int Thrd Sz, M30-2.00 Ext Thrd Sz
The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert with 4 keys, M20-1.50 internal thread size and M30-2.00 external thread size, plain finish, in a 10-pack. It meets Fed Std. H28/21 and MJ Form…
SKU 3G-OTH-531769
Also listed as: 217077573 · 217 077573
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 heavy-wall, mil. spec. insert with 4 keys, M20-1.50 internal thread size and M30-2.00 external thread size, plain finish, in a 10-pack. It meets Fed Std. H28/21 and MJ Form standards, with a 28.10 mm drill bit size, compatible M30-2.00 tap size, 2A external and 3B internal thread fits, and is made from 18-8 material.
Frequently Asked Questions
What is a key locking insert used for?
A key locking insert repairs or reinforces tapped threads in metal, preventing loosening under vibration. The APPROVED VENDOR heavy-wall, 4-key insert with M20-1.50 internal and M30-2.00 external threads suits aerospace, defense, and industrial applications requiring mil. spec. reliability.
What are the specifications of the APPROVED VENDOR key locking insert?
This heavy-wall insert has M20-1.50 internal and M30-2.00 external threads, 4 keys, plain finish, 18-8 material, 28.10 mm drill bit size, compatible M30-2.00 tap, 2A external and 3B internal thread fits, meeting Fed Std. H28/21 and MJ Form standards.
Where to buy APPROVED VENDOR key locking inserts worldwide?
3G Electric supplies APPROVED VENDOR key locking inserts worldwide, handling full logistics and customs clearance. We source genuine mil. spec. inserts like the 217-077573 10-pack and deliver to global industrial facilities. Contact us for availability and lead time.
How to install a key locking insert?
Drill a 28.10 mm hole, tap with an M30-2.00 tap, then thread the insert using a compatible installation tool until the keys engage. Ensure the external thread fit is 2A and internal fit is 3B for proper locking. Follow mil. spec. guidelines for torque and inspection.
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.