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APPROVED VENDOR Key Locking Insert: Thin Wall, 2 Keys, #8-32 Int Thrd Sz, 1/4"-28 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Thin Wall, 2 Keys, #8-32 Int Thrd Sz, 1/4"-28 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a thin-wall, mil-spec insert with #8-32 internal thread size and 1/4"-28 external thread size, supplied in a 10-pack. It features 2 keys, plain finish, coarse thread type…

SKU 3G-OTH-531800

Brand
APPROVED VENDOR
Item
Key Locking Insert: Thin Wall, 2 Keys, #8-32 Int Thrd Sz, 1/4"-28 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-077286
Type
#8-32 Int Thrd Sz, Plain, Plain, 10 PK
Keys
2
Wall Type
Thin Wall
Ext Thrd Sz
1/4"-28
Finish Type
Plain
Thread Type
Coarse
Industry Standards
MS51830-108
Compatible Tap Size
1/4"-28
External Thread Fit
2A
Internal Thread Fit
3B
Material Grade/Class
18-8
System of Measurement
Inch
View Full Spec Sheet

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

Product Description

The APPROVED VENDOR Key Locking Insert is a thin-wall, mil-spec insert with #8-32 internal thread size and 1/4"-28 external thread size, supplied in a 10-pack. It features 2 keys, plain finish, coarse thread type, and meets MS51830-108 standards. The insert is made from 18-8 material with external thread fit 2A and internal thread fit 3B, compatible with a 1/4"-28 tap size.

Frequently Asked Questions

What is an APPROVED VENDOR Key Locking Insert used for?

This thin-wall key locking insert is used to repair or reinforce threads in metal assemblies, particularly in aerospace and defense applications. It meets mil-spec MS51830-108, providing a permanent, high-strength thread in soft materials. The two keys lock the insert in place to prevent rotation under vibration.

What are the specifications of the APPROVED VENDOR Key Locking Insert 217-077286?

This insert has a #8-32 internal thread size and a 1/4"-28 external thread size, with a thin wall design. It is made from 18-8 stainless steel, has a plain finish, and includes 2 keys. External thread fit is 2A, internal thread fit is 3B, and it meets MS51830-108 standards.

Where to buy APPROVED VENDOR Key Locking Inserts worldwide?

3G Electric supplies APPROVED VENDOR key locking inserts to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 10-pack of MS51830-108 inserts.

How to install an APPROVED VENDOR Key Locking Insert?

Installation requires drilling to the specified tap size (1/4"-28), tapping the hole, then driving the insert using a compatible installation tool. The two keys are set into the parent material to lock the insert. Use a standard thread-locking compound for added security in high-vibration environments.

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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