PartsTable
Technical Data Sheet
Download PDF

549-4118-002 — SPRING,HELICAL,EXTENSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

549-4118-002: SPRING,HELICAL,EXTENSION.

The SPRING,HELICAL,EXTENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: DOUBLE FULL LOOP BOTH ENDS, design_type: CLOSED, load_rating: 0.937 POUNDS MINIMUM AND 1.187 POUNDS MAXIMUM LBS, coil_quantity: 4-3/4, inside_diameter: 0.540 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-085-2907, 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
549-4118-002
NSN: 5360-00-085-2907
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleDOUBLE FULL LOOP BOTH ENDS
design_typeCLOSED
load_rating0.937 POUNDS MINIMUM AND 1.187 POUNDS MAXIMUM LBS
coil_quantity4-3/4
inside_diameter0.540 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentTIN OVERALL
spring_free_length0.158 INCHES NOMINAL IN
coil_helix_directionLEFT-HAND
spring_deflection_rate2.070 POUNDS PER INCH NOMINAL LBS
spring_free_outside_diameter0.596 INCHES NOMINAL IN
NSN5360-00-085-2907
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,EXTENSION TITLE COMPONENT PN 549-4118-002 MFR SPRING,HELICAL,EXTENSI
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.596 INCHES NOMINAL IN
•
LOAD RATING: 0.937 POUNDS MINIMUM AND 1.187 POUNDS MAXIMUM LBS
•
END STYLE: DOUBLE FULL LOOP BOTH ENDS
•
DESIGN TYPE: CLOSED
•
STYLE DESIGNATOR: CYLINDRICAL
•
SPRING FREE LENGTH: 0.158 INCHES NOMINAL IN
•
SPRING DEFLECTION RATE: 2.070 POUNDS PER INCH NOMINAL LBS
•
INSIDE DIAMETER: 0.540 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.596 INCHES NOMINAL IN
LOAD RATING0.937 POUNDS MINIMUM AND 1.187 POUNDS MAXIMUM LBS
END STYLEDOUBLE FULL LOOP BOTH ENDS
DESIGN TYPECLOSED
STYLE DESIGNATORCYLINDRICAL
SPRING FREE LENGTH0.158 INCHES NOMINAL IN
SPRING DEFLECTION RATE2.070 POUNDS PER INCH NOMINAL LBS
INSIDE DIAMETER0.540 INCHES NOMINAL IN
COIL QUANTITY4-3/4
SURFACE TREATMENTTIN OVERALL
OTHER ITEMS IN FSC 5360 — Coil, Flat, Leaf, and Wire Springs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5360-00-001-1842 5360-00-001-1945 5360-00-001-2010 5360-00-001-3865 5360-00-001-3950 5360-00-001-4650 5360-00-001-4664 5360-00-001-4703
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 549-4118-002?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 549-4118-002?
549-4118-002 is a SPRING,HELICAL,EXTENSION.
What is the NSN for 549-4118-002?
549-4118-002 is cataloged in the U.S. Government catalog under NSN 5360-00-085-2907. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 549-4118-002

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.