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APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 7/8"-14 Int Thrd Sz, 1 1/4"-12 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 7/8"-14 Int Thrd Sz, 1 1/4"-12 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil. spec. insert with 4 keys, 7/8"-14 internal thread size, and 1 1/4"-12 external thread size. It is plain finish, 18-8 material, meets MS51832-204, and comes…

SKU 3G-OTH-531674

Brand
APPROVED VENDOR
Item
Key Locking Insert: Heavy Wall, 4 Keys, 7/8"-14 Int Thrd Sz, 1 1/4"-12 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-076510
Type
Plain, 10 PK
Keys
4
Wall Type
Heavy Wall
Ext Thrd Sz
1 1/4"-12
Finish Type
Plain
Int Thrd Sz
7/8"-14
Thread Type
Coarse
Drill Bit Size
1-11/64 in
Industry Standards
MS51832-204
Compatible Tap Size
1-1/4"-12
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 heavy-wall, mil. spec. insert with 4 keys, 7/8"-14 internal thread size, and 1 1/4"-12 external thread size. It is plain finish, 18-8 material, meets MS51832-204, and comes in a 10-pack (MPN 217-076510).

Frequently Asked Questions

What is a key locking insert used for?

A key locking insert is used to repair or reinforce tapped holes in metal, providing a strong, wear-resistant internal thread. The APPROVED VENDOR heavy-wall insert with 4 keys locks into place to prevent rotation under vibration, ideal for aerospace, military, and industrial applications requiring MS51832-204 compliance.

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

This heavy-wall insert has a 7/8"-14 internal thread and 1 1/4"-12 external thread, with 4 keys and a plain finish. It is made from 18-8 stainless steel, meets MS51832-204, requires a 1-11/64 in drill bit and 1-1/4"-12 tap, with external thread fit 2A and internal fit 3B.

Where to buy APPROVED VENDOR key locking inserts worldwide?

3G Electric supplies the APPROVED VENDOR key locking insert (MPN 217-076510) worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 10-pack of heavy-wall, MS51832-204 compliant inserts.

How to install a key locking insert?

To install, drill a hole to 1-11/64 in, tap it to 1-1/4"-12, then thread the insert in using a compatible installation tool. The 4 keys lock into the parent material to prevent rotation. Use a tang break-off tool if needed. Always follow MS51832-204 guidelines for proper torque and thread fit.

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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