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PartsTable / COMPONENT / A3278759
A3278759 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The BOLT,EYE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, shank_length: 2.250 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 2.000 INCHES NOMINAL IN, overall_length: 4.000 INCHES NOMINAL IN, style_designator: ROUND, OPEN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-504-6596, 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
A3278759
NSN: 5306-01-504-6596
FSC: 5306
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL OVERALL
shank_length2.250 INCHES NOMINAL IN
thread_class2A A
thread_length2.000 INCHES NOMINAL IN
overall_length4.000 INCHES NOMINAL IN
style_designatorROUND, OPEN
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
eye_stock_diameter0.375 INCHES NOMINAL IN
eye_inside_diameter1.000 INCHES NOMINAL IN
end_item_identification5985-01-384-6753
nominal_thread_diameter0.375 INCHES IN
NSN5306-01-504-6596
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A3278759 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD QUANTITY PER INCH: 16
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD CLASS: 2A A
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE AMS6382 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH16
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD CLASS2A A
MATERIAL DOCUMENT AND CLASSIFICATIONSAE AMS6382 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD DIAMETER0.375 INCHES IN
MATERIALSTEEL OVERALL
OVERALL LENGTH4.000 INCHES NOMINAL IN
DISTANCE FROM CENTER OF EYE TO SHANK END3.125 INCHES NOMINAL IN
END ITEM IDENTIFICATION5985-01-384-6753
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
XC110Interchangeable
interchangeable cross-reference
interchangeable
845936-02Interchangeable
interchangeable cross-reference
interchangeable
963410-1Interchangeable
interchangeable cross-reference
interchangeable
A1735MPC49Interchangeable
interchangeable cross-reference
interchangeable
A914PC42Interchangeable
interchangeable cross-reference
interchangeable
A994PC49Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A3278759?
A3278759 is a BOLT,EYE.
What parts can replace A3278759?
There are 15 known substitutes for A3278759: XC110, 845936-02, 963410-1 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A3278759?
A3278759 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-504-6596. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026