Surplus markets solve obsolescence problems, but they also attract counterfeit and remarked parts. Quality programs require traceability, supplier qualification, and skepticism toward deals that look too good on scarce MPNs.
Buy from identifiable suppliers
USParts.us listings show supplier company names so you can vet vendors before purchase. Avoid anonymous broker chains with no warehouse address or quality policy.
Demand traceability on high-risk lines
For defense, medical, and infrastructure programs, require date code photos, lot trace, and certificate of conformance where applicable. Document what you received against what you approved.
Use testing for critical assemblies
X-ray, decap, and electrical test are still the last line of defense. Marketplace search finds candidates; your quality process confirms they are real.
Ready to search or list parts?
Use free BOM search to source components, or list your surplus inventory so buyers can find your MPNs on USParts.us.