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PartsTable / COMPONENT / 491-M5
491-M5 ✓ 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 SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, coil_quantity: 11-1/2, inside_diameter: 0.167 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN, style_designator: CYLINDRICAL, surface_treatment: CADMIUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-246-7010, 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
491-M5
NSN: 5360-00-246-7010
FSC: 5360
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity11-1/2
inside_diameter0.167 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
style_designatorCYLINDRICAL
surface_treatmentCADMIUM OVERALL
spring_free_length0.813 INCHES NOMINAL IN
spring_solid_length0.563 INCHES MAXIMUM IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_free_outside_diameter0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
NSN5360-00-246-7010
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN 491-M5 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
COIL QUANTITY: 11-1/2
•
SPRING FREE LENGTH: 0.813 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: CYLINDRICAL
•
COIL HELIX DIRECTION: RIGHT-HAND OR LEFT-HAND
•
SPRING SOLID LENGTH: 0.563 INCHES MAXIMUM IN
•
SPRING FREE OUTSIDE DIAMETER: 0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
COIL QUANTITY11-1/2
SPRING FREE LENGTH0.813 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
STYLE DESIGNATORCYLINDRICAL
COIL HELIX DIRECTIONRIGHT-HAND OR LEFT-HAND
SPRING SOLID LENGTH0.563 INCHES MAXIMUM IN
SPRING FREE OUTSIDE DIAMETER0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
INSIDE DIAMETER0.167 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
20418Interchangeable
interchangeable cross-reference
interchangeable
PJ055RInterchangeable
interchangeable cross-reference
interchangeable
33-608Interchangeable
interchangeable cross-reference
interchangeable
MIL-P-642Interchangeable
interchangeable cross-reference
interchangeable
280129Interchangeable
interchangeable cross-reference
interchangeable
204-0185-02Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 491-M5?
491-M5 is a SPRING,HELICAL,COMPRESSION.
What parts can replace 491-M5?
There are 17 known substitutes for 491-M5: 20418, PJ055R, 33-608 and 14 more. Substitute compatibility should be verified for your specific system.
Is 491-M5 still available?
491-M5 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