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Technical Data Sheet
PartsTable / COMPONENT / C6511-1
C6511-1 ✓ 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

POLARIZING KEY,ELECTRICAL CONNEC. Key specifications include material: PLASTIC BOARD, pump_type: SINGLE, unit_type: SELF-CONTAINED, case_style: SQUARE, seal_width: 0.438 INCHES NOMINAL IN, load_capacity: 1.5 TONS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5935-00-125-2449, 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
C6511-1
NSN: 5935-00-125-2449
FSC: 5935
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
materialPLASTIC BOARD
pump_typeSINGLE
unit_typeSELF-CONTAINED
case_styleSQUARE
seal_width0.438 INCHES NOMINAL IN
load_capacity1.5 TONS
overall_width3.500 INCHES NOMINAL IN
body_thickness1.000 INCHES NOMINAL IN
board_thickness0.625 INCHES IN
extended_height14.000 INCHES NOMINAL IN
retracted_height8.000 INCHES NOMINAL IN
special_featuresDOUBLE SCREW TERMINALS
NSN5935-00-125-2449
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available POLARIZING KEY,ELECTRICAL CONNEC TITLE COMPONENT PN C6511-1 MFR POLARIZING KEY,ELECTRI
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
60226Interchangeable
interchangeable cross-reference
interchangeable
D-51121Interchangeable
interchangeable cross-reference
interchangeable
5120-00-061-1301Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
602 GP 26Interchangeable
interchangeable cross-reference
interchangeable
12295136Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C6511-1?
C6511-1 is a POLARIZING KEY,ELECTRICAL CONNEC.
What parts can replace C6511-1?
There are 11 known substitutes for C6511-1: 60226, D-51121, 5120-00-061-1301 and 8 more. Substitute compatibility should be verified for your specific system.
Is C6511-1 still available?
C6511-1 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