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APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 5/8"-11 Int Thrd Sz, 7/8"-14 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 5/8"-11 Int Thrd Sz, 7/8"-14 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a heavy-wall, mil-spec insert with 4 keys, 5/8"-11 internal thread size, and 7/8"-14 external thread size. Supplied in a plain finish, 10-pack, this inch-system 18-8…

SKU 3G-OTH-531762

Brand
APPROVED VENDOR
Item
Key Locking Insert: Heavy Wall, 4 Keys, 5/8"-11 Int Thrd Sz, 7/8"-14 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-077308
Type
Plain, 10 PK
Keys
4
Wall Type
Heavy Wall
Ext Thrd Sz
7/8"-14
Finish Type
Plain
Int Thrd Sz
5/8"-11
Thread Type
Coarse
Industry Standards
MS51830-103L
Compatible Tap Size
7/8"-14
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, 5/8"-11 internal thread size, and 7/8"-14 external thread size. Supplied in a plain finish, 10-pack, this inch-system 18-8 stainless steel insert meets MS51830-103L standards with external thread fit 2A and internal thread fit 3B.

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 is used to repair or reinforce threaded holes in metal assemblies, particularly in aerospace and defense applications. Its 4 keys lock the insert into place, preventing rotation under vibration. The 18-8 stainless steel construction meets mil-spec MS51830-103L for reliable performance in demanding environments.

What are the specifications of the APPROVED VENDOR 217-077308 Key Locking Insert?

This 10-pack insert has a 5/8"-11 internal thread and 7/8"-14 external thread, with a heavy wall and plain finish. It is made of 18-8 stainless steel, inch-system, with external thread fit 2A and internal thread fit 3B. It meets mil-spec MS51830-103L and is compatible with a 7/8"-14 tap.

Where to buy APPROVED VENDOR Key Locking Inserts worldwide?

3G Electric supplies APPROVED VENDOR key locking inserts to customers 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 the 217-077308 10-pack or other mil-spec inserts.

How to install an APPROVED VENDOR Key Locking Insert?

Installation requires tapping the hole to the specified compatible tap size (7/8"-14), then using a key locking insert driver to thread the insert into place. The 4 keys are then set into the parent material using a key setting tool to lock the insert. Follow standard mil-spec installation procedures for best results.

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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