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PartsTable / COMPONENT / QQS571SN50
QQS571SN50 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SOLDER,LEAD-TIN ALLOY is a the manufacturer industrial component. Key specifications include physical_form: BAR, content_within_each_unit_package: 1 LB LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3439-00-163-4347, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
QQS571SN50
NSN: 3439-00-163-4347
FSC: 3439
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
physical_formBAR
chemical_composition_percentageTIN 51.5,LEAD 47.535,ANTIMONY 0.5,BISMUTH 0.25,COPPER 0.08,ARSENIC 0.025,IRON 0.02,ALUMINUM 0.005,ZINC 0.005,REMAINDER NOT SPECIFIED
content_within_each_unit_package1 LB LBS
NSN3439-00-163-4347
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SOLDER,LEAD-TIN ALLOY TITLE COMPONENT PN QQS571SN50 MFR SOLDER,LEAD-TIN ALLOY
KEY FEATURES
•
CONTENT WITHIN EACH UNIT PACKAGE: 1 LB LBS
•
PHYSICAL FORM: BAR
•
CHEMICAL COMPOSITION PERCENTAGE: TIN 51.5,LEAD 47.535,ANTIMONY 0.5,BISMUTH 0.25,COPPER 0.08,ARSENIC 0.025,IRON 0.02,ALUMINUM 0.005,ZINC 0.005,REMAINDER NOT SPECIFIED
TECHNICAL CHARACTERISTICS (FLIS)
CONTENT WITHIN EACH UNIT PACKAGE1 LB LBS
PHYSICAL FORMBAR
CHEMICAL COMPOSITION PERCENTAGETIN 51.5,LEAD 47.535,ANTIMONY 0.5,BISMUTH 0.25,COPPER 0.08,ARSENIC 0.025,IRON 0.02,ALUMINUM 0.005,ZINC 0.005,REMAINDER NOT SPECIFIED
CHEMICAL COMPOSITION PERCENTAGETIN 51.5,LEAD 47.535,ANTIMONY 0.5,BISMUTH 0.25,COPPER 0.08,ARSENIC 0.025,IRON 0.02,ALUMINUM 0.005,ZINC 0.005,REMAINDER NOT SPECIFIED
CONTENT WITHIN EACH UNIT PACKAGE1 LB LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
M30Interchangeable
interchangeable cross-reference
interchangeable
MF234Interchangeable
interchangeable cross-reference
interchangeable
SS-S-736Interchangeable
interchangeable cross-reference
interchangeable
ANSI B74.12Interchangeable
interchangeable cross-reference
interchangeable
E640Interchangeable
interchangeable cross-reference
interchangeable
HG 640Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is QQS571SN50?
QQS571SN50 is a SOLDER,LEAD-TIN ALLOY.
What parts can replace QQS571SN50?
There are 21 known substitutes for QQS571SN50: M30, MF234, SS-S-736 and 18 more. Substitute compatibility should be verified for your specific system.
Is QQS571SN50 still available?
QQS571SN50 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026