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Welcome To BuyNSN is a national stock number centric website that was developed by ASAP Semiconductor. We are a service-oriented distributor that specializes in long-lead time, hard to find and obsolete parts. We are the industry’s go-to global provider of marine parts, aircraft parts, board level components and parts-based solutions. We began operations in 2010, focusing on a total of 40 federal supply classes.
Now our focus is on 90 plus federal supply classes. We have built a business based on a strong foundation of enduring relationships with over 10,000 vendors worldwide. Our proprietary database allows our valued customers to source over 100 million parts from more than 15,000 manufacturers with ease.
Customers can source their challenging requirements for board level components, marine engine, electronic, and jet drive parts, industrial valves, rotary and fixed wing engine components instantly.

  •  We are open 24/7/365
  •  Instant quotes
  •  Best in the industry logistical capabilities with same day and next day deliveries
  •  Dedicated account managers
  •  Flexible and open payment terms
  •  Rigid commitment to U.S export compliance
  •  ISO 9001-2015 and FAA 0056B certified

100+ Million Aircraft parts sold

115+ Billion Aviation Aftermarket Spares, Fasteners, Bearings, Connectors & Military Parts Available

60+ Thousand Happy Customers

34+ Thousand Daily Part Searches

Top Marine Parts

Top Brands

Tyco Electronics Raychem - NSN & Aerospace Parts
Kingbright Board Level Electronic Components
Schroeder Industries Llc - NSN & Aerospace Parts
Jauch Board Level Electronic Components
Warn Industries Inc - NSN & Aerospace Parts
Xcelite Board Level Electronic Components
 Semiconductor's Certifications and Memberships
“We Proudly Support Intrepid Fallen Heroes Fund that serves United States Military Personal experiencing the Invisible Wounds of War : Traumatic Brain Injury (TBI) and Post Traumatic Stress (PTS). Please visit website ( and help in their valiant effort”.