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R191A — SPRING,HELICAL,EXTENSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

R191A: SPRING,HELICAL,EXTENSION.

The SPRING,HELICAL,EXTENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: LONG LOOP BOTH ENDS, design_type: CLOSED, hook_radius: 0.188 INCHES NOMINAL BOTH ENDS IN, load_rating: 17.90 POUNDS NOMINAL LBS, coil_quantity: 46-1/2. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-261-4365, 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
R191A
NSN: 5360-00-261-4365
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 46460 — MCGRAW-EDISON CO POWER SYSTEMS GROUP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleLONG LOOP BOTH ENDS
design_typeCLOSED
hook_radius0.188 INCHES NOMINAL BOTH ENDS IN
load_rating17.90 POUNDS NOMINAL LBS
coil_quantity46-1/2
inside_diameter0.456 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length6.325 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_length_under_load6.500 INCHES NOMINAL IN
spring_free_outside_diameter0.656 INCHES NOMINAL IN
NSN5360-00-261-4365
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,EXTENSION TITLE COMPONENT PN R191A MFR SPRING,HELICAL,EXTENSI
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.656 INCHES NOMINAL IN
•
LOAD RATING: 17.90 POUNDS NOMINAL LBS
•
END STYLE: LONG LOOP BOTH ENDS
•
DESIGN TYPE: CLOSED
•
STYLE DESIGNATOR: CYLINDRICAL
•
SPRING FREE LENGTH: 6.325 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.456 INCHES NOMINAL IN
•
SPRING LENGTH UNDER LOAD: 6.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.656 INCHES NOMINAL IN
LOAD RATING17.90 POUNDS NOMINAL LBS
END STYLELONG LOOP BOTH ENDS
DESIGN TYPECLOSED
STYLE DESIGNATORCYLINDRICAL
SPRING FREE LENGTH6.325 INCHES NOMINAL IN
INSIDE DIAMETER0.456 INCHES NOMINAL IN
SPRING LENGTH UNDER LOAD6.500 INCHES NOMINAL IN
COIL QUANTITY46-1/2
COIL HELIX DIRECTIONRIGHT-HAND OR LEFT-HAND
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 1
KP191RSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R191A?
R191A is a SPRING,HELICAL,EXTENSION.
What parts can replace R191A?
There is 1 known substitute for R191A: KP191R. Substitute compatibility should be verified for your specific system.
What is the NSN for R191A?
R191A is cataloged in the U.S. Government catalog under NSN 5360-00-261-4365. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.