National Aerospace Standards Fasteners

The U.S. military standard system, represented by nasm specification, is the core basis for ensuring the reliability and consistency of fastener performance. This article will bring you a systematic understanding of the basic knowledge of aerospace fasteners and the application scenarios and product types of NASM/MS standards. Engineered to meet NASM specification, our national aerospace standards fasteners offer the precision and strength required for advanced aerospace systems.

What are NASM and MS standards?

NASM: National Aerospace Standards - Metric is the metric version of the original “NAS” standard. It regulates the tolerances, materials, strength levels and testing methods of various fasteners (such as bolts, nuts, pins, etc.).

MS: Military Standard, issued by the U.S. Department of Defense, covers the requirements for manufacturing, inspection and packaging of products used in the military industrial system.

The main difference between the two lies in the applicable scenarios and unit system: NASM is more oriented to aerospace systems and adopts the metric system, while MS is more widely used in military equipment systems and partially adopts imperial units.

Mocayo products that meet NASM specifications 
While there are many types of aerospace fasteners, common NASM-standard products used in industrial packages include:

Hex Spring Plungers: High strength grade, optional locking feature;

Ball Plunger Screw

Ball Lock Bolts: Commonly used for quick positioning and removal of equipment, with convenient locking structures;

Ball Lock Bolt

Quick Release Pins: Quick insertion and removal, suitable for structures requiring frequent replacement or servicing;

T Handle Quick Release Pin

Gaskets and Bushes: For sealing and anti-loosening protection in vibration environments.

Ball Lock Mounting System

National Aerospace Standards Fasteners have become increasingly important as global demand for high-end manufacturing and high-reliability components continues to rise. Not only does it represent the benchmark for connection technology in the aerospace industry, but it has also become the preferred fastener system for high-end equipment manufacturers.
Understanding and using nasm specification correctly will help you quickly identify, select and purchase aerospace fasteners that comply with international standards, and enhance project reliability and product added value.