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Technical Data Sheet
PartsTable / COMPONENT / 8678914
8678914 ✓ 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 COMP 8640 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL, head_style: HEXAGON, grip_length: 2.140 INCHES MINIMUM AND 2.200 INCHES MAXIMUM IN, head_height: 0.190 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 1.000 INCHES MINIMUM 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 5306-00-335-4245, 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
8678914
NSN: 5306-00-335-4245
FSC: 5306
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 8640 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL
head_styleHEXAGON
grip_length2.140 INCHES MINIMUM AND 2.200 INCHES MAXIMUM IN
head_height0.190 INCHES NOMINAL IN
thread_class3A A
thread_length1.000 INCHES MINIMUM IN
fastener_length3.220 INCHES MINIMUM AND 3.230 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentCADMIUM OVERALL
width_between_flats0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
nominal_thread_diameter0.312 INCHES IN
NSN5306-00-335-4245
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8678914 · 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
•
FASTENER LENGTH: 3.220 INCHES MINIMUM AND 3.230 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON
•
GRIP LENGTH: 2.140 INCHES MINIMUM AND 2.200 INCHES MAXIMUM IN
•
THREAD CLASS: 3A A
•
WIDTH BETWEEN FLATS: 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.190 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 24
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
FASTENER LENGTH3.220 INCHES MINIMUM AND 3.230 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
GRIP LENGTH2.140 INCHES MINIMUM AND 2.200 INCHES MAXIMUM IN
THREAD CLASS3A A
WIDTH BETWEEN FLATS0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
HEAD HEIGHT0.190 INCHES NOMINAL IN
THREAD QUANTITY PER INCH24
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD LENGTH1.000 INCHES MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
15RHAInterchangeable
interchangeable cross-reference
interchangeable
520878Interchangeable
interchangeable cross-reference
interchangeable
08V00315000Interchangeable
interchangeable cross-reference
interchangeable
5279Interchangeable
interchangeable cross-reference
interchangeable
165103P1Interchangeable
interchangeable cross-reference
interchangeable
531631C91Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8678914?
8678914 is a BOLT,MACHINE.
What parts can replace 8678914?
There are 7 known substitutes for 8678914: 15RHA, 520878, 08V00315000 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8678914?
8678914 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-335-4245. 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