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Technical Data Sheet
A661 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
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 LIGHTNING ROD is a the manufacturer industrial component. Key specifications include color: OFF-WHITE, material: PLASTIC EPOXY, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, barrel_style: STRAIGHT ROUND TYPE, flange_style: FLANGE, barrel_height: 0.203 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-266-4278, 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
MRO MRO_GENERAL A661
NSN: 5360-00-266-4278
FSC: 5360
CAGE: 14959 — CRANE CO DIV VALVE DIV (USA)
SPECIFICATIONS
colorOFF-WHITE
materialPLASTIC EPOXY
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
barrel_styleSTRAIGHT ROUND TYPE
flange_styleFLANGE
barrel_height0.203 INCHES NOMINAL IN
coil_quantity7-1/2
physical_formPASTE
inside_diameter0.438 INCHES NOMINAL IN
special_featuresSERVICE TEMPERATURES UP TO 400 DEG F DEGF
style_designatorCYLINDRICAL
features_providedSEPARATE CATALYST
NSN5360-00-266-4278
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LIGHTNING ROD TITLE COMPONENT PN A661 MFR LIGHTNING ROD
KEY FEATURES
STYLE DESIGNATOR: CYLINDRICAL
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
INSIDE DIAMETER: 0.438 INCHES NOMINAL IN
SPRING SOLID LENGTH: 0.719 INCHES NOMINAL IN
MATERIAL: STEEL OVERALL
SPRING FREE OUTSIDE DIAMETER: 0.622 INCHES NOMINAL IN
COIL QUANTITY: 7-1/2
COIL HELIX DIRECTION: LEFT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCYLINDRICAL
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
INSIDE DIAMETER0.438 INCHES NOMINAL IN
SPRING SOLID LENGTH0.719 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SPRING FREE OUTSIDE DIAMETER0.622 INCHES NOMINAL IN
COIL QUANTITY7-1/2
COIL HELIX DIRECTIONLEFT-HAND
SPRING FREE LENGTH1.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
504300Interchangeable
interchangeable cross-reference
interchangeable
A661Interchangeable
interchangeable cross-reference
interchangeable
201-500012-001Interchangeable
interchangeable cross-reference
interchangeable
56304-6Interchangeable
interchangeable cross-reference
interchangeable
HR22869Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A661?
A661 is a LIGHTNING ROD. It is classified as a MRO (MRO_GENERAL).
What parts can replace A661?
There are 5 known substitutes for A661: 504300, A661, 201-500012-001 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A661?
A661 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-266-4278. This indicates validated use in U.S. government and defense supply chains.
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