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APPROVED VENDOR Key Locking Insert: Thin Wall, 2 Keys, M3-0.50 Int Thrd Sz, M5x0.8 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Thin Wall, 2 Keys, M3-0.50 Int Thrd Sz, M5x0.8 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a thin-wall, mil. spec. insert with 2 keys, M3-0.50 internal thread size, M5x0.8 external thread size, plain finish, and coarse thread type. Supplied in a 10-pack (MPN…

SKU 3G-OTH-531793

Brand
APPROVED VENDOR
Item
Key Locking Insert: Thin Wall, 2 Keys, M3-0.50 Int Thrd Sz, M5x0.8 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-077384
Type
M3-0.50 Int Thrd Sz, M5x0.8 Ext Thrd Sz, Plain, Plain, 10 PK
Keys
2
Wall Type
Thin Wall
Finish Type
Plain
Thread Type
Coarse
Industry Standards
Fed Std. H28/21, MJ Form
Compatible Tap Size
M5-0.80
External Thread Fit
2A
Internal Thread Fit
3B
Material Grade/Class
18-8
System of Measurement
Metric
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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, mil. spec. insert with 2 keys, M3-0.50 internal thread size, M5x0.8 external thread size, plain finish, and coarse thread type. Supplied in a 10-pack (MPN 217-077384), it meets Fed Std. H28/21 and MJ Form standards, with 18-8 material, compatible tap size M5-0.80, external thread fit 2A, and internal thread fit 3B.

Frequently Asked Questions

What is a key locking insert used for?

A key locking insert, like the APPROVED VENDOR thin-wall M3-0.50 internal thread insert, is used to repair or reinforce threads in metal assemblies. It provides a durable, reusable thread in softer materials, meeting mil. spec. standards for aerospace, defense, and industrial applications.

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

This thin-wall insert has M3-0.50 internal thread size, M5x0.8 external thread size, 2 keys, plain finish, coarse thread type, 18-8 material, and meets Fed Std. H28/21 and MJ Form standards. It comes in a 10-pack (MPN 217-077384) with external thread fit 2A and internal thread fit 3B.

Where to buy APPROVED VENDOR key locking inserts worldwide?

3G Electric supplies APPROVED VENDOR key locking inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver these mil. spec. inserts to your facility. Contact us for availability and lead time on the 10-pack (MPN 217-077384).

How to install a thin-wall key locking insert?

To install a thin-wall key locking insert, drill and tap the hole to the compatible tap size (M5-0.80 for this insert), then use a key locking insert tool to thread the insert into place. The 2 keys lock it against rotation. Follow standard mil. spec. installation practices for 18-8 stainless steel inserts.

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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