We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
RFQ CartGet a QuoteSign inSign up
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 supplied as a Plain, 10…

SKU 3G-OTH-531808

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
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-076543
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
MS51831-206L
Compatible Tap Size
1-1/2"-12
External Thread Fit
2A
Internal Thread Fit
3B
Material Grade/Class
18-8
System of Measurement
Inch
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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 supplied as a Plain, 10 PK, made from 18-8 material, and conforms to industry standard MS51831-206L.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is an APPROVED VENDOR Key Locking Insert used for?

This Mil. Spec. key-locking insert repairs or reinforces stripped threads in heavy-duty industrial applications. Its extra heavy wall and 4 keys provide secure locking in demanding environments like machining, power transmission, and hydraulic systems. 3G Electric supplies this insert for worldwide delivery.

What are the specifications of the APPROVED VENDOR Key Locking Insert 217-076543?

This insert has a 1"-12 internal thread and 1 1/2"-12 external thread, with an extra heavy wall. It is made from 18-8 material, plain finish, and conforms to MS51831-206L. The drill bit size is 1-27/64 in, compatible tap size is 1-1/2"-12, with external thread fit 2A and internal fit 3B.

Where to buy APPROVED VENDOR Key Locking Insert MS51831-206L worldwide?

3G Electric sources and delivers the APPROVED VENDOR Key Locking Insert MS51831-206L to worldwide locations. We handle full logistics and customs clearance, ensuring you receive the correct Mil. Spec. insert for your industrial repair or maintenance needs. Contact us for availability and lead time.

How to install an APPROVED VENDOR Key Locking Insert?

Installation requires drilling to 1-27/64 in, tapping with a 1-1/2"-12 tap, then inserting the key-locking insert using a compatible tool. The 4 keys lock into the parent material for secure retention. Always follow standard thread repair practices. 3G Electric supplies this insert for your maintenance projects.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from APPROVED VENDOR

View all APPROVED VENDOR parts →
Key Locking Insert: Thin Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 217-076322). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 3/8"-16; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: MS51831-101; System of Measurement: Inch.
APPROVED VENDOR
Key Locking Insert: Thin Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 217-076322). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 3/8"-16; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: MS51831-101; System of Measurement: Inch.
Key Locking Insert: Extra Heavy Wall, 4 Keys, 1/2"-13 Int Thrd Sz, 13/16"-16 Ext Thrd Sz, 10 PK (MPN 217-077338). Key specifications — Wall Type: Extra Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 13/16"-16; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: NAS1394C3L; System of Measurement: Inch.
APPROVED VENDOR
Key Locking Insert: Extra Heavy Wall, 4 Keys, 1/2"-13 Int Thrd Sz, 13/16"-16 Ext Thrd Sz, 10 PK (MPN 217-077338). Key specifications — Wall Type: Extra Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 13/16"-16; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: NAS1394C3L; System of Measurement: Inch.
Key Locking Insert: Heavy Wall, 4 Keys, M5x0.8 Int Thrd Sz, M10x1.25 Ext Thrd Sz, Plain, 10 PK (MPN 217-076364). Key specifications — Wall Type: Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: M10x1.25; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: Fed Std. H28/21, MJ Form; System of Measurement: Metric.
APPROVED VENDOR
Key Locking Insert: Heavy Wall, 4 Keys, M5x0.8 Int Thrd Sz, M10x1.25 Ext Thrd Sz, Plain, 10 PK (MPN 217-076364). Key specifications — Wall Type: Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: M10x1.25; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: Fed Std. H28/21, MJ Form; System of Measurement: Metric.
Key Locking Insert: Thin Wall, 4 Keys, 5/16"-24 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, Plain, 10 PK (MPN 217-077523). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 7/16"-14; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: MS51832-107; System of Measurement: Inch.
APPROVED VENDOR
Key Locking Insert: Thin Wall, 4 Keys, 5/16"-24 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, Plain, 10 PK (MPN 217-077523). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 7/16"-14; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: MS51832-107; System of Measurement: Inch.
Key Locking Insert: Extra Heavy Wall, 4 Keys, 1"-8 Int Thrd Sz, 1 1/2"-12 Ext Thrd Sz, Plain, 10 PK (MPN 217-076343). Key specifications — Wall Type: Extra Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 1-1/2"-12; Drill Bit Size: 1-27/64 in; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: MS51832-106L.
APPROVED VENDOR
Key Locking Insert: Extra Heavy Wall, 4 Keys, 1"-8 Int Thrd Sz, 1 1/2"-12 Ext Thrd Sz, Plain, 10 PK (MPN 217-076343). Key specifications — Wall Type: Extra Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 1-1/2"-12; Drill Bit Size: 1-27/64 in; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: MS51832-106L.
Key Locking Insert: Heavy Wall, 4 Keys, #8-32 Int Thrd Sz, 5/16"-18 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 217-076300). Key specifications — Wall Type: Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 5/16"-18; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: MS51832-111; System of Measurement: Inch.
APPROVED VENDOR
Key Locking Insert: Heavy Wall, 4 Keys, #8-32 Int Thrd Sz, 5/16"-18 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 217-076300). Key specifications — Wall Type: Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 5/16"-18; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: MS51832-111; System of Measurement: Inch.
Key Locking Insert: Extra Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, Plain, 10 PK (MPN 217-077534). Key specifications — Wall Type: Extra Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 1/2"-13; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: MS51832-202L; System of Measurement: Inch.
APPROVED VENDOR
Key Locking Insert: Extra Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, Plain, 10 PK (MPN 217-077534). Key specifications — Wall Type: Extra Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 1/2"-13; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: MS51832-202L; System of Measurement: Inch.
Key Locking Insert: Heavy Wall, 4 Keys, M12x1.75 Int Thrd Sz, M18-1.50 Ext Thrd Sz, Plain, 10 PK (MPN 217-076369). Key specifications — Wall Type: Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: M18-1.50; Drill Bit Size: 16.70 mm; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: Fed Std. H28/21, MJ Form.
APPROVED VENDOR
Key Locking Insert: Heavy Wall, 4 Keys, M12x1.75 Int Thrd Sz, M18-1.50 Ext Thrd Sz, Plain, 10 PK (MPN 217-076369). Key specifications — Wall Type: Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: M18-1.50; Drill Bit Size: 16.70 mm; External Thread Fit: 2A; Internal Thread Fit: 3B; Material Grade/Class: 18-8; Industry Standards: Fed Std. H28/21, MJ Form.