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APPROVED VENDOR Key Locking Insert: Heavy Wall, 7/8"-9 Int Thrd Sz, 1 1/4"-12 Ext Thrd Sz - Mil. Spec. Key-Locking Inserts
APPROVED VENDORMil. Spec. Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Heavy Wall, 7/8"-9 Int Thrd Sz, 1 1/4"-12 Ext Thrd Sz

The APPROVED VENDOR Key Locking Insert is a Mil. Spec. heavy-wall insert, supplied in a 10-pack of 18-8 stainless steel. It features a 7/8"-9 internal thread and a 1 1/4"-12 external thread, with plain finish and…

SKU 3G-OTH-531671

Brand
APPROVED VENDOR
Item
Key Locking Insert: Heavy Wall, 7/8"-9 Int Thrd Sz, 1 1/4"-12 Ext Thrd Sz
Category
Mil. Spec. Key-Locking Inserts
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
217-077310
Type
Stainless Steel, 10 PK
Wall Type
Heavy Wall
Ext Thrd Sz
1 1/4"-12
Finish Type
Plain
Int Thrd Sz
7/8"-9
Thread Type
Coarse
Drill Bit Size
1-11/64 in
Industry Standards
NAS1395C08L
Compatible Tap Size
1-1/4"-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 Mil. Spec. heavy-wall insert, supplied in a 10-pack of 18-8 stainless steel. It features a 7/8"-9 internal thread and a 1 1/4"-12 external thread, with plain finish and coarse thread type. Designed to NAS1395C08L standards, it requires a 1-11/64 in drill bit and a 1-1/4"-12 tap, 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 a key locking insert used for?

A key locking insert repairs or reinforces stripped threads in metal assemblies, providing a permanent, high-strength thread. The APPROVED VENDOR heavy-wall insert, meeting NAS1395C08L standards, is used in aerospace, military, and industrial applications where vibration resistance and reliability are critical.

What are the specifications of the APPROVED VENDOR key locking insert?

This heavy-wall insert has a 7/8"-9 internal thread and a 1 1/4"-12 external thread, made from 18-8 stainless steel. It requires a 1-11/64 in drill bit and a 1-1/4"-12 tap, with external thread fit 2A and internal thread fit 3B. Supplied in a 10-pack with plain finish.

Where to buy APPROVED VENDOR key locking inserts worldwide?

3G Electric supplies the APPROVED VENDOR key locking insert (MPN 217-077310) to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive genuine Mil. Spec. inserts for your industrial maintenance or repair needs.

How to install a key locking insert?

Drill the hole to 1-11/64 in, tap it to 1-1/4"-12 with a compatible tap, then thread the insert into the tapped hole using a key locking insert tool. The keys lock the insert into the parent material, preventing rotation. Follow NAS1395C08L guidelines for proper installation.

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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