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APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 1"-12 Int Thrd Sz, 1 3/8"-12 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 1"-12 Int Thrd Sz, 1 3/8"-12 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil-spec insert with 4 keys, 1"-12 internal thread size, and 1 3/8"-12 external thread size. It is plain finish, 18-8 material, coarse thread, inch system, and…

SKU 3G-OTH-531681

Brand
APPROVED VENDOR
Item
Key Locking Insert: Heavy Wall, 4 Keys, 1"-12 Int Thrd Sz, 1 3/8"-12 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-076511
Type
Plain, 10 PK
Keys
4
Wall Type
Heavy Wall
Ext Thrd Sz
1 3/8"-12
Finish Type
Plain
Int Thrd Sz
1"-12
Thread Type
Coarse
Drill Bit Size
1-19/64 in
Industry Standards
MS51832-205
Compatible Tap Size
1-3/8"-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, 1"-12 internal thread size, and 1 3/8"-12 external thread size. It is plain finish, 18-8 material, coarse thread, inch system, and meets MS51832-205. Supplied as a 10-pack, it requires a 1-19/64 in drill bit and 1-3/8"-12 tap, with 2A external and 3B internal thread fits.

Frequently Asked Questions

What is the 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, defense, and industrial applications requiring mil-spec reliability. The 4-key design locks the insert in place to prevent rotation under vibration.

What are the specifications of the APPROVED VENDOR Key Locking Insert 217-076511?

This 10-pack insert has a 1"-12 internal thread size and 1 3/8"-12 external thread size, with 18-8 stainless steel material. It requires a 1-19/64 in drill bit and 1-3/8"-12 tap. Thread fits are 2A external and 3B internal. Meets MS51832-205.

Where to buy APPROVED VENDOR Key Locking Inserts worldwide?

3G Electric supplies APPROVED VENDOR key locking inserts to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this MS51832-205 heavy-wall insert with 4 keys.

How to install a key locking insert like the APPROVED VENDOR 217-076511?

Drill the hole to 1-19/64 in, tap to 1-3/8"-12 thread, then thread the insert into the tapped hole using a compatible installation tool. The 4 keys are then set into the parent material to lock the insert. Use a thread locking compound for added security.

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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