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

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

OEM Key Locking Insert: Heavy Wall, 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 made from 18-8 stainless steel, supplied in a 10-pack. It features a 7/8"-14 internal thread (3B fit) and a 1 1/4"-12 external thread (2A fit)…

SKU 3G-OTH-531713

Also listed as: 217077510 · 217 077510

Brand
OEM
Item
Key Locking Insert: Heavy Wall, 7/8-"14 Int Thrd Sz, 1 1/4"-12 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
Available to Order
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Worldwide Shipping
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OEM
Manufacturer Part Number
217-077510
Type
Stainless Steel, 10 PK
Wall Type
Heavy Wall
Ext Thrd Sz
1 1/4"-12
Finish Type
Plain
Int Thrd Sz
7/8-"14
Thread Type
Coarse
Industry Standards
MS51831-111L
Compatible Tap Size
1-1/4"-12
External Thread Fit
2A
Internal Thread Fit
3B
Internal Thread Size
7/8-"14
Material Grade/Class
18-8
System of Measurement
Inch

Technical Documents

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OEM Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil-spec insert made from 18-8 stainless steel, supplied in a 10-pack. It features a 7/8"-14 internal thread (3B fit) and a 1 1/4"-12 external thread (2A fit), compatible with a 1-1/4"-12 tap and meeting MS51831-111L standards.

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 heavy-wall key locking insert repairs or reinforces tapped holes in metal assemblies, providing a durable 18-8 stainless steel thread. It meets MS51831-111L standards for aerospace, defense, and industrial applications where vibration resistance and thread integrity are critical.

What are the specifications of the APPROVED VENDOR Key Locking Insert 217-077510?

This 10-pack insert has a 7/8"-14 internal thread (3B fit) and a 1 1/4"-12 external thread (2A fit). It is made from 18-8 stainless steel with a heavy wall, plain finish, and is compatible with a 1-1/4"-12 tap. It meets MS51831-111L standards.

Where to buy APPROVED VENDOR Key Locking Inserts worldwide?

3G Electric supplies and delivers APPROVED VENDOR key locking inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order arrives at your facility, regardless of location.

How to install a key locking insert like the APPROVED VENDOR MS51831-111L?

Installation requires tapping the hole to the specified compatible tap size (1-1/4"-12), then driving the insert using a key locking tool until it is seated flush. The external keys lock into the parent material to prevent rotation. Follow standard mil-spec insert procedures.

OEM Products

3G Electric supplies OEM 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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