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A3156821-001 — GUY ATTACHMENT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A3156821-001: GUY ATTACHMENT.

The GUY ATTACHMENT is a the manufacturer industrial component. Key specifications include material: STEEL, overall_width: 1.344 INCHES NOMINAL IN, holding_method: FORMED EYE, overall_length: 2.500 INCHES NOMINAL IN, mounting_facility: UNTHREADED HOLE(S), surface_treatment: ZINC. This part is cataloged in the U.S.

Government catalog under NSN 4030-01-348-2305, 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
A3156821-001
NSN: 4030-01-348-2305
FSC: 4030 — Fittings for Rope, Cable, and Chain
CAGE: 0TW64 — HARRIS CORP TRANSCOMM DIV (USA)
SPECIFICATIONS
materialSTEEL
overall_width1.344 INCHES NOMINAL IN
holding_methodFORMED EYE
overall_length2.500 INCHES NOMINAL IN
mounting_facilityUNTHREADED HOLE(S)
surface_treatmentZINC
mounting_hole_diameter0.688 INCHES NOMINAL IN
mounting_hole_quantity1
end_item_identificationMAST AB-1373/TRC
NSN4030-01-348-2305
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GUY ATTACHMENT TITLE COMPONENT PN A3156821-001 MFR GUY ATTACHMENT
KEY FEATURES
•
MOUNTING HOLE QUANTITY: 1
•
MOUNTING HOLE DIAMETER: 0.688 INCHES NOMINAL IN
•
HOLDING METHOD: FORMED EYE
•
MOUNTING FACILITY: UNTHREADED HOLE(S)
•
SURFACE TREATMENT: ZINC
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY1
MOUNTING HOLE DIAMETER0.688 INCHES NOMINAL IN
OVERALL LENGTH2.500 INCHES NOMINAL IN
OVERALL WIDTH1.344 INCHES NOMINAL IN
HOLDING METHODFORMED EYE
MOUNTING FACILITYUNTHREADED HOLE(S)
SURFACE TREATMENTZINC
END ITEM IDENTIFICATIONMAST AB-1373/TRC
MATERIALSTEEL
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 1
12210C2Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A3156821-001?
A3156821-001 is a GUY ATTACHMENT.
What parts can replace A3156821-001?
There is 1 known substitute for A3156821-001: 12210C2. Substitute compatibility should be verified for your specific system.
What is the NSN for A3156821-001?
A3156821-001 is cataloged in the U.S. Government catalog under NSN 4030-01-348-2305. 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.