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APPROVED VENDOR Key Locking Insert: Thin Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 1/2"-13 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Thin Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 1/2"-13 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a thin-wall, inch-system Mil. Spec. insert with 4 keys, 3/8"-16 internal thread size, and 1/2"-13 external thread size. It is made of 18-8 material, has a plain finish, and…

SKU 3G-OTH-531643

Brand
APPROVED VENDOR
Item
Key Locking Insert: Thin Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 1/2"-13 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-077324
Type
Plain, Plain, 10 PK
Keys
4
Wall Type
Thin Wall
Ext Thrd Sz
1/2"-13
Finish Type
Plain
Int Thrd Sz
3/8"-16
Thread Type
Coarse
Industry Standards
MS51832-102
Compatible Tap Size
1/2"-13
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 thin-wall, inch-system Mil. Spec. insert with 4 keys, 3/8"-16 internal thread size, and 1/2"-13 external thread size. It is made of 18-8 material, has a plain finish, and meets MS51832-102 standards. Supplied in a 10-pack, this insert features a 2A external thread fit and 3B internal thread fit, compatible with a 1/2"-13 tap.

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 is used to repair or reinforce tapped threads in metal assemblies, providing a durable, reusable thread in softer materials. The APPROVED VENDOR thin-wall insert with 4 keys meets Mil. Spec. MS51832-102 for aerospace and defense applications, ensuring secure fastening under vibration.

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

This thin-wall insert has a 3/8"-16 internal thread and 1/2"-13 external thread, made of 18-8 stainless steel with a plain finish. It features 4 keys, 2A external and 3B internal thread fits, and is compatible with a 1/2"-13 tap. Supplied in a 10-pack, it meets MS51832-102 standards.

Where to buy APPROVED VENDOR key locking inserts worldwide?

3G Electric supplies the APPROVED VENDOR key locking insert (MPN 217-077324) to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this Mil. Spec. insert to your facility, ensuring compliance with MS51832-102 standards.

How to install a key locking insert?

To install, tap the hole to the compatible tap size (1/2"-13 for this insert), then use a key locking insert installation tool to drive the insert until it is flush or slightly below the surface. The 4 keys lock into the parent material to prevent rotation. Follow standard thread repair practices 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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