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APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 1/2"-20 Int Thrd Sz, 11/16"-11 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 1/2"-20 Int Thrd Sz, 11/16"-11 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil-spec insert with 4 keys, a 1/2"-20 internal thread size, and an 11/16"-11 external thread size. It is plain finish, 18-8 material, inch system, and meets…

SKU 3G-OTH-531736

Brand
APPROVED VENDOR
Item
Key Locking Insert: Heavy Wall, 4 Keys, 1/2"-20 Int Thrd Sz, 11/16"-11 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-077506
Type
Plain, 10 PK
Keys
4
Wall Type
Heavy Wall
Ext Thrd Sz
11/16"-11
Finish Type
Plain
Int Thrd Sz
1/2"-20
Thread Type
Coarse
Industry Standards
MS51831-107L
Compatible Tap Size
11/16"-11
External Thread Fit
2A
Internal Thread Fit
3B
Material Grade/Class
18-8
System of Measurement
Inch
View Full Spec Sheet

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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 with 4 keys, a 1/2"-20 internal thread size, and an 11/16"-11 external thread size. It is plain finish, 18-8 material, inch system, and meets MS51831-107L. Supplied as a 10-pack, it is compatible with an 11/16"-11 tap and has external thread fit 2A and internal thread fit 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 an APPROVED VENDOR Key Locking Insert used for?

This heavy-wall key locking insert repairs or reinforces stripped threads in metal assemblies, meeting mil-spec MS51831-107L. It is used across aerospace, defense, and industrial equipment where a secure, vibration-resistant thread is required. 3G Electric supplies this insert for worldwide applications.

What are the specifications of the APPROVED VENDOR Key Locking Insert 217-077506?

This 10-pack insert has a 1/2"-20 internal thread and 11/16"-11 external thread, heavy wall, 4 keys, plain finish, 18-8 material, inch system, external thread fit 2A, internal thread fit 3B, and meets MS51831-107L. Compatible tap size is 11/16"-11.

Where to buy APPROVED VENDOR Key Locking Inserts worldwide?

3G Electric supplies APPROVED VENDOR key locking inserts worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this MS51831-107L compliant insert.

How to install a key locking insert like the APPROVED VENDOR 217-077506?

Installation requires tapping the hole to 11/16"-11, then winding the insert onto a driver tool until it is below the surface. The four keys are then set using a key-setting tool to lock the insert in place. Always follow the manufacturer's instructions for torque and depth.

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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