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APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 7/16"-20 Int Thrd Sz, 5/8"-11 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 7/16"-20 Int Thrd Sz, 5/8"-11 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert (NAS1394C7) with 4 keys, 7/16"-20 internal thread and 5/8"-11 external thread, plain finish, 10 PK. Made from 18-8 stainless steel, it…

SKU 3G-OTH-531719

Brand
APPROVED VENDOR
Item
Key Locking Insert: Heavy Wall, 4 Keys, 7/16"-20 Int Thrd Sz, 5/8"-11 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-076505
Type
Plain, 10 PK
Keys
4
Wall Type
Heavy Wall
Ext Thrd Sz
5/8"-11
Finish Type
Plain
Int Thrd Sz
7/16"-20
Thread Type
Coarse
Industry Standards
NAS1394C7
Compatible Tap Size
5/8"-11
External Thread Fit
2A
Internal Thread Fit
3B
Material Grade/Class
18-8
System of Measurement
Inch
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APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert (NAS1394C7) with 4 keys, 7/16"-20 internal thread and 5/8"-11 external thread, plain finish, 10 PK. Made from 18-8 stainless steel, it features a 2A external thread fit and 3B internal thread fit, compatible with a 5/8"-11 tap size.

Frequently Asked Questions

What is a key locking insert used for?

A key locking insert repairs or reinforces stripped threads in metal assemblies, providing a durable stainless steel thread. The APPROVED VENDOR heavy-wall insert with 4 keys meets NAS1394C7 mil. spec., ideal for aerospace, defense, and industrial applications requiring high-strength, vibration-resistant threads.

What are the specifications of the APPROVED VENDOR key locking insert?

This heavy-wall insert has a 7/16"-20 internal thread and 5/8"-11 external thread, with 4 keys and plain finish. It is made from 18-8 stainless steel, meets NAS1394C7, and has a 2A external fit and 3B internal fit. Compatible tap size is 5/8"-11. Sold in a 10-pack.

Where to buy APPROVED VENDOR key locking inserts worldwide?

3G Electric supplies the APPROVED VENDOR key locking insert (MPN 217-076505) 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 NAS1394C7 mil. spec. insert.

How to install a key locking insert?

Installation requires tapping the hole to the specified compatible tap size (5/8"-11 for this insert), then driving the insert using a key locking insert tool until the keys engage. Ensure the insert is flush or slightly below the surface. Use thread locking compound for critical applications. Follow NAS1394C7 guidelines.

Used in

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Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

APPROVED 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.

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