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APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 7/16"-14 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"-14 Int Thrd Sz, 5/8"-11 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a heavy-wall, inch-system Mil. Spec. insert with 4 keys, 7/16"-14 internal thread size, and 5/8"-11 external thread size. It is made from 18-8 material, meets MS51832-211…

SKU 3G-OTH-531650

Brand
APPROVED VENDOR
Item
Key Locking Insert: Heavy Wall, 4 Keys, 7/16"-14 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
217-077305
Type
Plain, 10 PK
Keys
4
Wall Type
Heavy Wall
Ext Thrd Sz
5/8"-11
Finish Type
Plain
Int Thrd Sz
7/16"-14
Thread Type
Coarse
Industry Standards
MS51832-211
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, inch-system Mil. Spec. insert with 4 keys, 7/16"-14 internal thread size, and 5/8"-11 external thread size. It is made from 18-8 material, meets MS51832-211 standards, and is supplied in a plain finish, 10-pack. External thread fit is 2A; internal thread fit is 3B.

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 a key locking insert used for?

A key locking insert repairs or reinforces tapped threads in metal assemblies, especially where vibration loosens standard fasteners. The four external keys lock the insert into the parent material, preventing rotation. This heavy-wall, 18-8 stainless steel insert meets MS51832-211 for aerospace and defense applications.

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

This heavy-wall insert has a 7/16"-14 internal thread and a 5/8"-11 external thread with 2A external fit and 3B internal fit. It includes 4 keys, a plain finish, and is made from 18-8 stainless steel. It meets MS51832-211 standards and comes in a 10-pack. Compatible tap size is 5/8"-11.

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, customs clearance, and delivery to your facility. Contact us to order the 10-pack, plain finish, heavy-wall insert meeting MS51832-211 standards.

How to install a key locking insert?

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

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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