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3812T21 — SHACKLE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3812T21: SHACKLE.

The SHACKLE is a the manufacturer industrial component. Key specifications include material: STEEL, inside_length: 1.313 INCHES NOMINAL IN, opening_width: 0.688 INCHES NOMINAL IN, style_designator: CHAIN, breaking_strength: 500.0 BELT GROUP 3, material_diameter: 0.313 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4030-01-600-2555, 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
3812T21
NSN: 4030-01-600-2555
FSC: 4030 — Fittings for Rope, Cable, and Chain
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL
inside_length1.313 INCHES NOMINAL IN
opening_width0.688 INCHES NOMINAL IN
style_designatorCHAIN
breaking_strength500.0 BELT GROUP 3
material_diameter0.313 INCHES NOMINAL IN
end_item_identificationMRAP; RG31, CAIMAN, MAXXPRO
NSN4030-01-600-2555
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHACKLE TITLE COMPONENT PN 3812T21 MFR SHACKLE
KEY FEATURES
•
INSIDE LENGTH: 1.313 INCHES NOMINAL IN
•
MATERIAL DIAMETER: 0.313 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CHAIN
•
OPENING WIDTH: 0.688 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
BREAKING STRENGTH: 500.0 BELT GROUP 3
TECHNICAL CHARACTERISTICS
INSIDE LENGTH1.313 INCHES NOMINAL IN
MATERIAL DIAMETER0.313 INCHES NOMINAL IN
STYLE DESIGNATORCHAIN
OPENING WIDTH0.688 INCHES NOMINAL IN
END ITEM IDENTIFICATIONMRAP; RG31, CAIMAN, MAXXPRO
MATERIALSTEEL
BREAKING STRENGTH500.0 BELT GROUP 3
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 3812T21?
3812T21 is a SHACKLE.
What is the NSN for 3812T21?
3812T21 is cataloged in the U.S. Government catalog under NSN 4030-01-600-2555. 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.