AN, MS, NAS and NASM hardware supplied to specification.
Webson Fasteners supplies military specification fasteners and hardware for aerospace, defense, electronics and other mission-critical applications. We source AN, MS, NAS and NASM parts to the controlling specification and provide the traceability documentation required to support demanding production and maintenance programs.
Webson is an AS9120B and ISO 9001 certified distributor with more than four decades of fastener sourcing experience.
Source Mil-Spec hardware from one certified distributor.
Aerospace and defense bills of material can contain hardware governed by several different specification systems. Webson helps customers consolidate those requirements through one experienced source.
Provide the complete part number, quantity, revision requirements and required documentation. Our team will review the requirement and source the hardware to the applicable specification.
AN
Army-Navy specification hardware commonly used in aircraft, airframe and aerospace assemblies.
MS
Military Standard hardware developed for repeatable use across military equipment and systems.
NAS
National Aerospace Standards covering fasteners and components used throughout the aerospace industry.
NASM
Military specifications maintained within the National Aerospace Standards system.
The controlling specification, drawing and purchase-order requirements determine the correct part. Customers should provide complete part numbers and revision information whenever available.
Mil-Spec fasteners and related hardware.
Webson supplies and sources a broad range of military and aerospace hardware. Availability depends on the applicable part number, specification, material, finish and documentation requirements.
Bolts and Cap Screws
Structural, machine and specialty fasteners supplied to the applicable military or aerospace specification.
Machine Screws
Specification-controlled screws for panels, equipment, electronics and general aerospace assemblies.
Nuts and Washers
Standard and self-locking components for structural, mechanical and vibration-sensitive applications.
Pins and Rivets
Permanent and removable fastening components used across aerospace, defense and equipment assemblies.
Inserts and Retaining Components
Threaded inserts, retaining rings and related hardware used to secure or reinforce assemblies.
Self-Locking Hardware
Fasteners designed for applications where vibration resistance and dependable retention are critical.
Do not see the part you need? Send Webson the complete part number, drawing or specification. Our team can review hard-to-find and special requirements.
Submit Part Numbers →The hardware and the paperwork your program requires.
Military and aerospace programs depend on documentation as much as physical hardware. Webson supplies Mil-Spec orders with aerospace-grade traceability to support customer quality, receiving and program requirements.
Material Traceability
Documentation connecting supplied hardware to its material, lot and manufacturing source as required.
Certificates and Order Documentation
Certification documents supplied in accordance with the applicable order and specification requirements.
Lot Control
Identification and control practices that help preserve product traceability throughout the supply chain.
Counterfeit-Part Prevention
A zero-tolerance approach to counterfeit parts supported by Webson's AS9120B quality-management system.
Supplied to the applicable material and finish requirements.
The correct Mil-Spec part is defined by more than its basic dimensions. Material, strength, finish, locking features, revision level and documentation requirements can all affect whether a part is acceptable for a specific program.
Webson can source Mil-Spec hardware with required finishes including:
- Cadmium plating
- Zinc-nickel plating
- Alodine conversion coating
- Other finishes required by the applicable part specification or customer drawing
Always include the full part number and any applicable revision, finish, testing or documentation requirements with your RFQ.
Hardware for production, maintenance and mission-critical assemblies.
Airframe Structures and Interiors
Specification-controlled fasteners for aircraft structures, interiors and related assemblies.
Avionics Racks and Panels
Hardware used in electronic equipment, panels, racks and supporting assemblies.
Ground Support Equipment
Fasteners and components for equipment used to service, support and maintain aerospace systems.
Defense Systems
Military specification hardware for defense equipment and controlled production requirements.
MRO and Spares
Replacement and maintenance hardware sourced by complete specification and part number.
Electronic and Mechanical Assemblies
Fasteners and supporting hardware for mission-critical equipment beyond the airframe itself.
Learn more about Webson's military and aerospace capabilities.
Four decades of precision sourcing.
Since 1986, Webson Fasteners has supplied fastening products, electronic hardware and specialty components to demanding manufacturers. Customers rely on Webson when a requirement calls for more than a generic catalog part.
AS9120B and ISO 9001 Certified
A quality-management system designed to support consistent processes, traceability and aerospace distribution requirements.
Experienced Specification Sourcing
More than four decades of experience reviewing part numbers, drawings and specialized fastener requirements.
One Source for Complex Bills of Material
Commercial, electronic, custom and Mil-Spec hardware supplied through one experienced distributor.
Responsive RFQ Support
Send Webson your part numbers, quantities and documentation requirements for review and quotation.
Mil-Spec fastener questions.
What is the difference between AN, MS, NAS and NASM hardware?
AN, MS, NAS and NASM identify different families of military and aerospace specifications. Each family contains individual standards that define dimensions, materials, finishes, performance requirements and other characteristics. The complete part number and current specification determine the correct component.
Can Webson supply documentation with Mil-Spec fasteners?
Yes. Webson supplies aerospace-grade traceability and applicable order documentation based on the part specification and customer requirements. Include all certification and documentation requirements with the RFQ and purchase order.
Can Webson source Mil-Spec part numbers that are not listed on the website?
Yes. The website represents only a portion of Webson's sourcing capabilities. Submit the complete AN, MS, NAS or NASM part number, required quantity and any applicable revision or documentation requirements for review.
What should I include in a Mil-Spec fastener RFQ?
Provide the complete part number, quantity, required delivery date, specification revision when applicable, material or finish requirements and required certifications or traceability documents. Drawings or supporting specifications can be attached to the Webson RFQ form.
Does Webson supply special finishes?
Webson sources Mil-Spec and custom hardware with finishes including cadmium, zinc-nickel and Alodine when required by the applicable specification or drawing. Finish availability depends on the individual part and program requirements.
Which industries does Webson support with Mil-Spec hardware?
Webson supplies hardware for military, aerospace, electronics, medical and other manufacturing applications where specification control, dependable sourcing and traceability are important.
More from Webson Fasteners.
Military & Aerospace
Fastening hardware for airframe, avionics, defense, ground support and MRO programs.
Quality & Certifications
Review Webson's AS9120B and ISO 9001 certification and quality commitments.
Value-Added Services
Learn about vendor-managed inventory, bin stocking, custom kitting and related programs.
Have an AN, MS, NAS or NASM requirement?
Send Webson your part numbers, quantities, specifications and required documentation. Our team will review the requirement and prepare a quote.