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3556T18 — SHACKLE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3556T18: SHACKLE.

The SHACKLE is a the manufacturer industrial component. Key specifications include material: STEEL, eyelet_style: ROUND PLAIN, end_condition: PLAIN, inside_length: 3.250 INCHES NOMINAL IN, opening_width: 1.687 INCHES NOMINAL IN, style_designator: CHAIN. This part is cataloged in the U.S.

Government catalog under NSN 4030-01-607-1844, 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
3556T18
NSN: 4030-01-607-1844
FSC: 4030 — Fittings for Rope, Cable, and Chain
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL
eyelet_styleROUND PLAIN
end_conditionPLAIN
inside_length3.250 INCHES NOMINAL IN
opening_width1.687 INCHES NOMINAL IN
style_designatorCHAIN
material_diameter1.000 INCHES NOMINAL IN
surface_treatmentZINC
closure_head_styleFLAT
eye_inside_diameter1.125 INCHES NOMINAL IN
locking_device_typeCOTTER PIN AND NUT
end_item_identificationNSN 3830-01-600-6479
NSN4030-01-607-1844
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHACKLE TITLE COMPONENT PN 3556T18 MFR SHACKLE
KEY FEATURES
•
INSIDE LENGTH: 3.250 INCHES NOMINAL IN
•
END CONDITION: PLAIN
•
MATERIAL DIAMETER: 1.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CHAIN
•
OPENING WIDTH: 1.687 INCHES NOMINAL IN
•
EYELET STYLE: ROUND PLAIN
•
SAFE OPERATING LOAD RATING: 18739.00 POUNDS NOMINAL LBS
•
LOCKING DEVICE TYPE: COTTER PIN AND NUT
TECHNICAL CHARACTERISTICS
INSIDE LENGTH3.250 INCHES NOMINAL IN
END CONDITIONPLAIN
MATERIAL DIAMETER1.000 INCHES NOMINAL IN
STYLE DESIGNATORCHAIN
OPENING WIDTH1.687 INCHES NOMINAL IN
EYELET STYLEROUND PLAIN
SAFE OPERATING LOAD RATING18739.00 POUNDS NOMINAL LBS
LOCKING DEVICE TYPECOTTER PIN AND NUT
CLOSURE HEAD STYLEFLAT
SURFACE TREATMENTZINC
OTHER ITEMS IN FSC 4030 — Fittings for Rope, Cable, and Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4030-00-001-5120 4030-00-001-9591 4030-00-001-9952 4030-00-001-9953 4030-00-003-0385 4030-00-003-1512 4030-00-003-1801 4030-00-003-4166
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
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FREQUENTLY ASKED QUESTIONS
What is 3556T18?
3556T18 is a SHACKLE.
What is the NSN for 3556T18?
3556T18 is cataloged in the U.S. Government catalog under NSN 4030-01-607-1844. 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.