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APPROVED VENDOR Key Locking Insert: Extra Heavy Wall, 4 Keys, 7/16"-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: Extra Heavy Wall, 4 Keys, 7/16"-20 Int Thrd Sz, 11/16"-11 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 7/16"-20 internal thread size, and an 11/16"-11 external thread size…

SKU 3G-OTH-531655

Brand
APPROVED VENDOR
Item
Key Locking Insert: Extra Heavy Wall, 4 Keys, 7/16"-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
217-077537
Type
10 PK
Keys
4
Wall Type
Extra Heavy Wall
Ext Thrd Sz
11/16"-11
Finish Type
Plain
Int Thrd Sz
7/16"-20
Thread Type
Coarse
Industry Standards
MS51832-205L
Compatible Tap Size
11/16"-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 Mil. Spec. key-locking insert with an Extra Heavy Wall, supplied in a 10 PK. It features 4 keys, a 7/16"-20 internal thread size, and an 11/16"-11 external thread size, with a plain finish and 18-8 material grade. This inch-system insert meets MS51832-205L standards, with a compatible tap size of 11/16"-11, 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 Mil. Spec. key-locking insert with an Extra Heavy Wall is used to repair or reinforce tapped threads in metal assemblies, particularly in aerospace, defense, and industrial applications requiring high pull-out resistance. The 4 keys lock the insert into the parent material, preventing rotation under vibration or torque.

What are the specifications of the APPROVED VENDOR 217-077537 Key Locking Insert?

This 10-pack insert has a 7/16"-20 internal thread size and an 11/16"-11 external thread size, with an Extra Heavy Wall. It is made from 18-8 stainless steel, meets MS51832-205L standards, and has a plain finish. External thread fit is 2A; internal thread fit is 3B. Compatible tap size is 11/16"-11.

Where to buy APPROVED VENDOR Key Locking Inserts worldwide?

3G Electric supplies the APPROVED VENDOR Key Locking Insert (MPN 217-077537) to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this Mil. Spec. insert.

How to install an APPROVED VENDOR Key Locking Insert?

Installation requires tapping the hole to the compatible tap size (11/16"-11), then using a key-locking insert driver to thread the insert into place. After installation, the 4 keys are set into the parent material using a key-setting tool to prevent rotation. Follow standard Mil. Spec. installation 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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