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APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, M8x1.25 Int Thrd Sz, M14x1.5 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, M8x1.25 Int Thrd Sz, M14x1.5 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert with 4 keys, M8x1.25 internal thread size, M14x1.5 external thread size, plain finish, and coarse thread type. It meets Fed Std. H28/21 and MJ…

SKU 3G-OTH-531694

Brand
APPROVED VENDOR
Item
Key Locking Insert: Heavy Wall, 4 Keys, M8x1.25 Int Thrd Sz, M14x1.5 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
Available to Order
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-077366
Type
M8x1.25 Int Thrd Sz, M14x1.5 Ext Thrd Sz, Plain, 10 PK
Keys
4
Wall Type
Heavy Wall
Finish Type
Plain
Thread Type
Coarse
Industry Standards
Fed Std. H28/21, MJ Form
Compatible Tap Size
M14x1.5
External Thread Fit
2A
Internal Thread Fit
3B
Material Grade/Class
18-8
System of Measurement
Metric
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, M8x1.25 internal thread size, M14x1.5 external thread size, plain finish, and coarse thread type. It meets Fed Std. H28/21 and MJ Form standards, with a compatible tap size of M14x1.5, external thread fit 2A, internal thread fit 3B, and is made from 18-8 material in a 10-pack.

Frequently Asked Questions

What is an APPROVED VENDOR key locking insert used for?

This heavy-wall key locking insert is used to repair or reinforce tapped threads in metal assemblies, particularly in aerospace and defense applications. It meets Fed Std. H28/21 and MJ Form standards, ensuring reliable thread strength in high-stress environments.

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

This insert has M8x1.25 internal thread size and M14x1.5 external thread size, with 4 keys and a plain finish. It is made from 18-8 stainless steel, meets Fed Std. H28/21 and MJ Form standards, and comes in a 10-pack. External thread fit is 2A; internal thread fit is 3B.

Where to buy APPROVED VENDOR key locking inserts worldwide?

3G Electric supplies and delivers APPROVED VENDOR key locking inserts worldwide. We handle full logistics and customs clearance, ensuring you receive genuine mil. spec. inserts like the 217-077366 heavy-wall, 4-key, M8x1.25 internal thread size insert. Contact us for availability and delivery to your location.

How to install an APPROVED VENDOR key locking insert?

Installation requires tapping the hole to the compatible tap size (M14x1.5), then using a key locking insert driver to wind the insert into the tapped hole until it is slightly below the surface. The keys are then set using a key setting tool to lock the insert in place. Follow standard mil. spec. installation practices.

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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