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Technical Data Sheet
PartsTable / COMPONENT / 5306AC1-010
5306AC1-010 ✓ 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,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP E4340 OVERALL, head_style: SQUARE, head_height: 0.188 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.626 INCHES MINIMUM IN, fastener_length: 6.281 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-445-8521, 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
5306AC1-010
NSN: 5306-00-445-8521
FSC: 5306
CAGE: 81996 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP E4340 OVERALL
head_styleSQUARE
head_height0.188 INCHES NOMINAL IN
thread_class3A A
thread_length0.626 INCHES MINIMUM IN
fastener_length6.281 INCHES NOMINAL IN
special_featuresZINC CHROMATE FINISH INTERNALLY RELIEVED PORTION,TWO HOLES IN HEAD
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
surface_treatmentCHROMIUM GRIP
width_between_flats1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
nominal_thread_diameter1.062 INCHES IN
NSN5306-00-445-8521
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5306AC1-010 · 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 LENGTH: 0.626 INCHES MINIMUM IN
•
FASTENER LENGTH: 6.281 INCHES NOMINAL IN
•
HEAD STYLE: SQUARE
•
HEAD HEIGHT: 0.188 INCHES NOMINAL IN
•
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER: 5.872 INCHES NOMINAL FIRST HOLE IN
•
MINIMUM TENSILE STRENGTH: 150000 POUNDS PER SQUARE INCH LBS
•
THREAD CLASS: 3A A
•
MATERIAL: STEEL COMP E4340 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.626 INCHES MINIMUM IN
FASTENER LENGTH6.281 INCHES NOMINAL IN
HEAD STYLESQUARE
HEAD HEIGHT0.188 INCHES NOMINAL IN
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER5.872 INCHES NOMINAL FIRST HOLE IN
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH LBS
THREAD CLASS3A A
MATERIALSTEEL COMP E4340 OVERALL
STYLE DESIGNATORCONCENTRIC HOLE UNTHREADED
SURFACE TREATMENTCADMIUM THREADS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
98800Interchangeable
interchangeable cross-reference
interchangeable
45330Interchangeable
interchangeable cross-reference
interchangeable
55-115Interchangeable
interchangeable cross-reference
interchangeable
502058Interchangeable
interchangeable cross-reference
interchangeable
61-307Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5306AC1-010?
5306AC1-010 is a BOLT,INTERNALLY RELIEVED BODY.
What parts can replace 5306AC1-010?
There are 5 known substitutes for 5306AC1-010: 98800, 45330, 55-115 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5306AC1-010?
5306AC1-010 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-445-8521. 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