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U610491 ✓ 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 U610491 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-878-7161, 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
U610491
NSN: 6685-00-878-7161
FSC: 6685
CAGE: 78943 — TRIUMPH THERMAL SYSTEMS, LLC (USA)
SPECIFICATIONS
Part NumberU610491
NSN6685-00-878-7161
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available U610491 TITLE COMPONENT PN U610491 MFR U610491
KEY FEATURES
•
POINTER COLOR: BLACK
•
CONNECTION SIZE: 0.125 IN. NPT DIA IN
•
COLOR: BLACK CASE
•
MATERIAL: COPPER ALLOY AND STEEL CASE
•
SURFACE TREATMENT: ENAMEL CASE
•
MOUNTING HOLE DIAMETER: 0.173 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
POINTER COLORBLACK
CONNECTION SIZE0.125 IN. NPT DIA IN
COLORBLACK CASE
MATERIALCOPPER ALLOY AND STEEL CASE
SURFACE TREATMENTENAMEL CASE
MATERIALGLASS PROTECTIVE CRYSTAL
MATERIALCOPPER ALLOY 511 ACTUATING ELEMENT
MOUNTING HOLE DIAMETER0.173 INCHES NOMINAL IN
OVERALL DIAMETER3.560 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER3.180 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
P845FF0-300-21/2D1AInterchangeable
interchangeable cross-reference
interchangeable
2 1-2 1DFFM1-8CBM300Interchangeable
interchangeable cross-reference
interchangeable
P645FF21-2300PSIInterchangeable
interchangeable cross-reference
interchangeable
6685PL1784741Interchangeable
interchangeable cross-reference
interchangeable
138005-P845FFInterchangeable
interchangeable cross-reference
interchangeable
10161Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is U610491?
U610491 is a U610491.
What parts can replace U610491?
There are 29 known substitutes for U610491: P845FF0-300-21/2D1A, 2 1-2 1DFFM1-8CBM300, P645FF21-2300PSI and 26 more. Substitute compatibility should be verified for your specific system.
Is U610491 still available?
U610491 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