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Technical Data Sheet
PartsTable / COMPONENT / MS20659-51
MS20659-51 ✓ 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 TERMINAL,LUG is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 FASTENER, head_style: FLAT CHAMFER, hole_depth: 0.052 INCHES NOMINAL IN, head_height: 0.495 INCHES NOMINAL IN, shank_style: TUBULAR, thread_class: 2A A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-688-6009, 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
MS20659-51
NSN: 5940-00-688-6009
FSC: 5940
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 303 FASTENER
head_styleFLAT CHAMFER
hole_depth0.052 INCHES NOMINAL IN
head_height0.495 INCHES NOMINAL IN
shank_styleTUBULAR
thread_class2A A
head_diameter0.420 INCHES NOMINAL IN
hole_diameter0.068 INCHES NOMINAL IN
thread_length0.550 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN
shank_diameter0.092 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
fastener_length1.045 INCHES MINIMUM AND 1.085 INCHES MAXIMUM IN
special_featuresSTRAIGHT KNURLED
NSN5940-00-688-6009
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TERMINAL,LUG TITLE COMPONENT PN MS20659-51 MFR TERMINAL,LUG
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
S1051Interchangeable
interchangeable cross-reference
interchangeable
12636Interchangeable
interchangeable cross-reference
interchangeable
1222-1Interchangeable
interchangeable cross-reference
interchangeable
1836432Interchangeable
interchangeable cross-reference
interchangeable
BUWEPSDWG1836432Interchangeable
interchangeable cross-reference
interchangeable
321867Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS20659-51?
MS20659-51 is a TERMINAL,LUG.
What parts can replace MS20659-51?
There are 18 known substitutes for MS20659-51: S1051, 12636, 1222-1 and 15 more. Substitute compatibility should be verified for your specific system.
Is MS20659-51 still available?
MS20659-51 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