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APPROVED VENDOR Key Locking Insert: Thin Wall, 2 Keys, M4-0.70 Int Thrd Sz, M6-0.75 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Thin Wall, 2 Keys, M4-0.70 Int Thrd Sz, M6-0.75 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a thin-wall, mil. spec. insert with M4-0.70 internal and M6-0.75 external threads, supplied in a 10-pack. It features 2 keys, a plain finish, coarse thread type, and is made…

SKU 3G-OTH-531686

Brand
APPROVED VENDOR
Item
Key Locking Insert: Thin Wall, 2 Keys, M4-0.70 Int Thrd Sz, M6-0.75 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
Available to Order
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-076386
Type
M4-0.70 Int Thrd Sz, M6-0.75 Ext Thrd Sz, Plain, Plain, 10 PK
Keys
2
Wall Type
Thin Wall
Finish Type
Plain
Thread Type
Coarse
Industry Standards
Fed Std. H28/21, MJ Form
Compatible Tap Size
M6-0.75
External Thread Fit
2A
Internal Thread Fit
3B
External Thread Size
M6-0.75
Material Grade/Class
18-8
System of Measurement
Metric
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APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Key Locking Insert is a thin-wall, mil. spec. insert with M4-0.70 internal and M6-0.75 external threads, supplied in a 10-pack. It features 2 keys, a plain finish, coarse thread type, and is made from 18-8 material. The insert meets Fed Std. H28/21 and MJ Form standards, with external thread fit 2A and internal thread fit 3B, and is compatible with M6-0.75 tap size.

Frequently Asked Questions

What is a key locking insert used for?

A key locking insert is used to repair or reinforce internal threads in metal assemblies, particularly in aerospace and defense applications. The APPROVED VENDOR thin-wall insert with M4-0.70 internal and M6-0.75 external threads provides a permanent, high-strength thread repair that meets mil. spec. standards like Fed Std. H28/21.

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

This thin-wall insert has M4-0.70 internal and M6-0.75 external threads, a 2A external thread fit, and a 3B internal thread fit. It includes 2 keys, a plain finish, coarse thread type, and is made from 18-8 material. It meets Fed Std. H28/21 and MJ Form standards and is compatible with M6-0.75 tap size.

Where to buy APPROVED VENDOR key locking inserts worldwide?

3G Electric supplies APPROVED VENDOR key locking inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver these mil. spec. inserts to your facility. Contact us for availability and lead time on the 10-pack thin-wall insert with M4-0.70 internal threads.

How to install a key locking insert?

Installation requires tapping the hole to the specified compatible tap size (M6-0.75), then using a driver tool to insert the APPROVED VENDOR insert until it is flush or slightly below the surface. The keys lock into the parent material to prevent rotation. Follow standard mil. spec. thread repair procedures for best results.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
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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