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APPROVED VENDOR Key Locking Insert: Extra Heavy Wall, 4 Keys, 1/2"-20 Int Thrd Sz, 13/16"-16 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Extra Heavy Wall, 4 Keys, 1/2"-20 Int Thrd Sz, 13/16"-16 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a Mil. Spec. key-locking insert with an Extra Heavy Wall, supplied in a 10 PK. It features 4 keys, a 1/2"-20 internal thread size, a 13/16"-16 external thread size, and is…

SKU 3G-OTH-531660

Brand
APPROVED VENDOR
Item
Key Locking Insert: Extra Heavy Wall, 4 Keys, 1/2"-20 Int Thrd Sz, 13/16"-16 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
Available to Order
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-076538
Type
10 PK
Keys
4
Wall Type
Extra Heavy Wall
Ext Thrd Sz
13/16"-16
Finish Type
Plain
Int Thrd Sz
1/2"-20
Thread Type
Coarse
Industry Standards
NAS1395C3L
Compatible Tap Size
13/16"-16
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 Mil. Spec. key-locking insert with an Extra Heavy Wall, supplied in a 10 PK. It features 4 keys, a 1/2"-20 internal thread size, a 13/16"-16 external thread size, and is made from 18-8 material. This inch-system insert meets NAS1395C3L standards, with a compatible tap size of 13/16"-16, external thread fit 2A, and internal thread fit 3B.

Frequently Asked Questions

What is an APPROVED VENDOR Key Locking Insert used for?

This Mil. Spec. key-locking insert with an Extra Heavy Wall is used to repair or reinforce threads in metal assemblies, particularly in aerospace and defense applications. The 4 keys lock the insert into the parent material, preventing rotation under vibration or load.

What are the specifications of the APPROVED VENDOR Key Locking Insert 217-076538?

This 10-pack insert has a 1/2"-20 internal thread and a 13/16"-16 external thread, with an Extra Heavy Wall. It is made from 18-8 stainless steel, meets NAS1395C3L standards, and has a 2A external thread fit with a 3B internal thread fit.

Where to buy APPROVED VENDOR Key Locking Inserts worldwide?

3G Electric supplies APPROVED VENDOR Key Locking Inserts worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine Mil. Spec. inserts like the 217-076538 to any international destination.

How to install an APPROVED VENDOR Key Locking Insert?

Installation requires tapping the hole to the compatible tap size (13/16"-16), then winding the insert onto a driver tool until the keys align with the pre-cut keyways. After insertion, the keys are staked into the parent material to lock the insert in place.

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.
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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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