NAS/MS Ball Lock Pin
author: Lucia Liu
2025-10-17
Table of Contents
1. Material We Use For Ball Locking Pin
2. Manufacturing Standards & Quality Control
3. Our Precision Manufacturing Processes
4. Extensive Application Scenarios
5. FAQ
1. Material We Use For Ball Locking Pin
2. Manufacturing Standards & Quality Control
3. Our Precision Manufacturing Processes
4. Extensive Application Scenarios
5. FAQ
NAS/MS Ball Lock Pin
Mocayo ball lock pins are commonly employed in applications requiring rapid, frequent, and manual product assembly and disassembly. It is commonly referred to as quick release pin, quick lock pin, ball lock pin, detent pin, detent ball pin or rapid release pin, rapid disconnect pin. Mocayo Precision Technology Co., Ltd., with over a decade of manufacturing expertise and rigorous quality management systems, produces Ball Locking Pins that fully comply with NAS/MS standards. These pins find extensive application across aviation, engineering equipment, and industrial automation sectors.
Material We Use For Ball Locking Pin
Handles are typically manufactured from aluminium alloy with black anodised surface treatment and electrophoretic coating.
Other component materials include: Stainless steel grades 303/304/316/17-4PH. All stainless steel materials are RoHS and TUV certified. Material selection criteria are as follows:
1. Grade 316 is generally used for marine and high corrosion resistance applications.
2. 17-4 pH grade is employed where high shear resistance is required.
3. For cost-effective solutions, stainless steel 303 grade is utilised.
4. Stainless steel 304 grade is specified for certain applications.
Other component materials include: Stainless steel grades 303/304/316/17-4PH. All stainless steel materials are RoHS and TUV certified. Material selection criteria are as follows:
1. Grade 316 is generally used for marine and high corrosion resistance applications.
2. 17-4 pH grade is employed where high shear resistance is required.
3. For cost-effective solutions, stainless steel 303 grade is utilised.
4. Stainless steel 304 grade is specified for certain applications.
Mocayo adopts high-precision CNC machining equipment and full inspection process to ensure that the dimensional accuracy, surface finish, and locking force of each Ball Locking Pin are in accordance with NAS/MS standards.
The company uses high-quality 17-4PH stainless steel, alloy steel and AISI 304/316 stainless steel, and enhances the strength and corrosion resistance through heat treatment and passivation process, so that the products can operate steadily for a long time in aviation, marine and complex mechanical environments. The products are able to operate stably for a long period of time in aerospace, marine and complex mechanical environments.
The company uses high-quality 17-4PH stainless steel, alloy steel and AISI 304/316 stainless steel, and enhances the strength and corrosion resistance through heat treatment and passivation process, so that the products can operate steadily for a long time in aviation, marine and complex mechanical environments. The products are able to operate stably for a long period of time in aerospace, marine and complex mechanical environments.
Our precision manufacturing processes:
1. Export products: Typically undergo material procurement, turning, drilling, heat treatment, centreless grinding, reaming, thread forming, polishing and cleaning, followed by quality inspection;
2. Domestic products: Material procurement, turning, knurling, heat treatment, cleaning, and quality inspection;
3. Buttons and handles generally undergo turning followed by oxidation treatment before quality inspection.
1. Export products: Typically undergo material procurement, turning, drilling, heat treatment, centreless grinding, reaming, thread forming, polishing and cleaning, followed by quality inspection;
2. Domestic products: Material procurement, turning, knurling, heat treatment, cleaning, and quality inspection;
3. Buttons and handles generally undergo turning followed by oxidation treatment before quality inspection.
Extensive Application Scenarios
With its superior structure and performance, the Mocayo Ball Locking Pin finds widespread application across the following sectors:
Aerospace: Securing seat assemblies, access panels, door mechanisms, and airframe connection points;
Machinery Manufacturing: Utilised in tooling fixtures, mould positioning, jig conversion, and robotic arm joints;
Automotive & Rail Transport: Facilitating rapid connections for seating systems, assembly equipment, and maintenance infrastructure;
Engineering Equipment & Defence: Enabling swift component assembly/disassembly, positioning mechanisms, and safety locking systems.
Whether within aircraft structural components or high-load machinery, the Mocayo Ball Locking Pin maintains stable locking performance under conditions of high vibration and extreme temperature fluctuations, demonstrating NAS/MS standard-grade professional quality.
With its superior structure and performance, the Mocayo Ball Locking Pin finds widespread application across the following sectors:
Aerospace: Securing seat assemblies, access panels, door mechanisms, and airframe connection points;
Machinery Manufacturing: Utilised in tooling fixtures, mould positioning, jig conversion, and robotic arm joints;
Automotive & Rail Transport: Facilitating rapid connections for seating systems, assembly equipment, and maintenance infrastructure;
Engineering Equipment & Defence: Enabling swift component assembly/disassembly, positioning mechanisms, and safety locking systems.
Whether within aircraft structural components or high-load machinery, the Mocayo Ball Locking Pin maintains stable locking performance under conditions of high vibration and extreme temperature fluctuations, demonstrating NAS/MS standard-grade professional quality.
FAQ
Q:What number model of NAS/MS Standards do you conform to?
A: Mocayo ball locking pins conform to NASM aerospace and military standards, ranging from MS 17984-90 to NASM 17984-17990, and from NAS Numbers 1333-1346 to 1353-1366. Sizes are available in international metric, American imperial, and British imperial dimensions.
Q: What components typically make up a ball locking pin?
A: Mocayo ball locking pins typically comprise an external pin, internal pin, push button, pull handle, spring, steel ball, key ring, threaded section, and safety lanyard (usually a customer-specified option, typically consisting of a stainless steel cord attached to a perforated tab plate).
Q: How does a ball locking pin work?
A: Upon pressing the button, the spring retracts, causing the steel ball to shift and withdraw into the inner pin groove. This action draws the steel ball back into the outer pin hole (below the outer pin's diameter). At this point, insert the ball locking pin into the corresponding hole on the component. Release the button, allowing the spring and steel ball to reset, thereby securing and locking the components together.
Precision-crafted to NAS/MS standards, each Mocayo ball locking pin ensures smooth operation, long service life, and dependable strength.
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