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APPROVED VENDOR Key Locking Insert: Extra Heavy Wall, 4 Keys, 1"-12 Int Thrd Sz, 1 1/2"-12 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"-12 Int Thrd Sz, 1 1/2"-12 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a Mil. Spec. key-locking insert with an Extra Heavy Wall, featuring 4 keys, a 1"-12 internal thread size, and a 1 1/2"-12 external thread size. It is plain finish, 18-8…

SKU 3G-OTH-531768

Brand
APPROVED VENDOR
Item
Key Locking Insert: Extra Heavy Wall, 4 Keys, 1"-12 Int Thrd Sz, 1 1/2"-12 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-077543
Type
Plain, 10 PK
Keys
4
Wall Type
Extra Heavy Wall
Ext Thrd Sz
1 1/2"-12
Finish Type
Plain
Int Thrd Sz
1"-12
Thread Type
Coarse
Drill Bit Size
1-27/64 in
Industry Standards
MS51832-211L
Compatible Tap Size
1-1/2"-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 Mil. Spec. key-locking insert with an Extra Heavy Wall, featuring 4 keys, a 1"-12 internal thread size, and a 1 1/2"-12 external thread size. It is plain finish, 18-8 material, meets MS51832-211L, and comes in a 10 PK. Compatible tap size is 1-1/2"-12; drill bit size is 1-27/64 in; external thread fit is 2A; internal thread fit is 3B.

Frequently Asked Questions

What is an APPROVED VENDOR Key Locking Insert used for?

This Mil. Spec. key-locking insert repairs or strengthens threads in metal assemblies, especially in aerospace, defense, and heavy machinery. The extra heavy wall and 4 keys provide high pull-out resistance. 3G Electric supplies this insert across 14 industrial departments, including fastening and machining.

What are the specifications of the APPROVED VENDOR Key Locking Insert 217-077543?

This insert has a 1"-12 internal thread and 1 1/2"-12 external thread, extra heavy wall, 18-8 material, plain finish, and meets MS51832-211L. It requires a 1-27/64 in drill bit and 1-1/2"-12 tap. External thread fit is 2A; internal fit is 3B. Comes in a 10-pack.

Where to buy APPROVED VENDOR Key Locking Inserts worldwide?

3G Electric sources and delivers APPROVED VENDOR key locking inserts worldwide. We handle full logistics and customs clearance for global orders. Contact us for availability and lead time on this MS51832-211L insert. We supply across 14 industrial departments, including fastening and tooling.

How to install a key-locking thread insert?

Drill to the specified size (1-27/64 in for this insert), tap with the compatible tap (1-1/2"-12), then drive the insert using a key-locking installation tool until the keys engage. Ensure the external thread fit (2A) and internal fit (3B) are clean. 3G Electric can advise on tooling and sourcing.

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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