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PartsTable / COMPONENT / H8226
H8226 ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: SQUARE, head_height: 0.750 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.750 INCHES MINIMUM IN, fastener_length: 8.625 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 5306-00-254-9660, 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
H8226
NSN: 5306-00-254-9660
FSC: 5306
CAGE: 35311 — AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleSQUARE
head_height0.750 INCHES NOMINAL IN
thread_class2A A
thread_length1.750 INCHES MINIMUM IN
fastener_length8.625 INCHES NOMINAL IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
width_between_flats2.500 INCHES NOMINAL IN
nominal_thread_diameter2.000 INCHES IN
thread_quantity_per_inch8
NSN5306-00-254-9660
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: H8226 · 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: 1.750 INCHES MINIMUM IN
•
HEAD STYLE: SQUARE
•
WIDTH BETWEEN FLATS: 2.500 INCHES NOMINAL IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.312 INCHES NOMINAL FIRST HOLE IN
•
FEATURES PROVIDED: UNFINISHED HEAD
•
THREAD SERIES DESIGNATOR: UN
•
MATERIAL: STEEL OVERALL
•
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER: 8.188 INCHES NOMINAL FIRST HOLE IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH1.750 INCHES MINIMUM IN
HEAD STYLESQUARE
WIDTH BETWEEN FLATS2.500 INCHES NOMINAL IN
SHANK UNTHREADED HOLE DIAMETER0.312 INCHES NOMINAL FIRST HOLE IN
FEATURES PROVIDEDUNFINISHED HEAD
THREAD SERIES DESIGNATORUN
MATERIALSTEEL OVERALL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER8.188 INCHES NOMINAL FIRST HOLE IN
THREAD QUANTITY PER INCH8
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
371-0371-010Interchangeable
interchangeable cross-reference
interchangeable
C494Interchangeable
interchangeable cross-reference
interchangeable
1FJ42Interchangeable
interchangeable cross-reference
interchangeable
JC494Interchangeable
interchangeable cross-reference
interchangeable
AS6018Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H8226?
H8226 is a BOLT,MACHINE.
What parts can replace H8226?
There are 5 known substitutes for H8226: 371-0371-010, C494, 1FJ42 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H8226?
H8226 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-254-9660. 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