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MS17826 Castellated Nut with Non-Metallic Insert – Aerospace Fastener
MS17826 Castellated Nut with Non-Metallic Insert – Aerospace Fastener
MS17826 – Aerospace Grade Nut
MS17826 Castellated Nut with Non-Metallic Insert – Aerospace Fastener
MS17826 Castellated Nut with Non-Metallic Insert – Aerospace Fastener
MS17826 – Aerospace Grade Nut

MS17826 Castellated Nut

What is MS17826?

MS17826 is a Military Standard (MS) fastener used extensively in aerospace and defense applications. It is a self-locking castellated hex nut designed to ensure secure locking in high-vibration aircraft environments. The part is known for its thin profile and high-performance material composition, such as AISI 4130 and AISI 8740 steel.

Why MS17826 is a Trusted Aerospace Fastener

Engineers and OEMs worldwide rely on MS17826 for its precision performance, vibration resistance, and durability. Built to meet stringent military specifications, this nut is ideal for high-stress aircraft assemblies. UPS Lakshmi manufactures MS17826 to exact standards, ensuring consistency and compliance.

ParameterSpecification
StandardMS17826 (Military Specification)
TypeSelf-locking, Castellated, Hexagon, Thin
MaterialAISI 4130 / AISI 8740
Tensile Strength250 ksi
InsertNon-metallic locking insert
Finish OptionsCadmium Plated / Passivated / As per customer request
Thread TypeUNJF / UNF
ApplicationsAerospace, Aircraft Assemblies, Defense Equipment

Looking to buy MS17826 castellated nut in India? Our aerospace-grade hex nuts are manufactured using AISI 4130 and 8740 steel with strict compliance to military standards. The self-locking castellated nut for aircraft applications ensures vibration resistance and high performance under extreme conditions. Trusted by global aerospace OEMs, UPS Lakshmi is your certified source for MS17826 fasteners.

In addition to standard parts, UPS Lakshmi specializes in manufacturing custom aerospace fasteners and precision machined components as per special drawings or project-specific requirements.

Why Choose UPS Lakshmi?

UPS Lakshmi is a certified manufacturer and global supplier of MS17826 self-locking castellated hex nuts, engineered for high-strength aerospace and defense applications. Built to military standards, this thin-profile nut features a non-metallic insert and castellated design for secure locking under dynamic conditions.

  • AS9100D & ISO 9001 Certified Production

  • In-house forging, CNC machining, heat treatment & testing

  • 65+ years of manufacturing Expertise.

  • Trusted Globally by Aerospace & Industrial Leaders

Frequently Asked Questions – MS17826

What is MS17826?

MS17826 is a military standard castellated self-locking nut, typically used in aerospace structures requiring secure fastening under vibration.

What material is MS17826 made of?

UPS Lakshmi manufactures MS17826 nuts from AISI 4130 or AISI 8740 steel with optional cadmium plating or passivation.

Where is MS17826 used?

MS17826 is used in aircraft structures, aerospace assemblies, and defense equipment where vibration resistance and secure locking are critical.

Do you offer custom versions of MS17826?

Yes, UPS Lakshmi provides custom aerospace fasteners including MS17826 as per customer specifications or project drawings.

Want a deep dive into MS17826 castellated nuts? Read our detailed blog here.