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MHC129 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MHC129: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 10.9 OVERALL, fastener_length: 25.0 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND, end_item_identification: DIESEL ENGINE, nominal_thread_diameter: 6.0 MILLIMETERS MM. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-485-8355, 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
MHC129
NSN: 5306-01-485-8355
FSC: 5306 — Bolts
CAGE: 0VP52 — FINCANTIERI MARINE SYSTEMS NORTH AMERICA, INC. DBA FINCANTIERI MARINE SYSTEMS NORTH AM (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 10.9 OVERALL
fastener_length25.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
end_item_identificationDIESEL ENGINE
nominal_thread_diameter6.0 MILLIMETERS MM
thread_series_designatorM
NSN5306-01-485-8355
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MHC129 · 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: 25.0 MILLIMETERS NOMINAL MM
•
NOMINAL THREAD DIAMETER: 6.0 MILLIMETERS MM
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL PROPERTY CLASS 10.9 OVERALL
•
THREAD SERIES DESIGNATOR: M
TECHNICAL CHARACTERISTICS
FASTENER LENGTH25.0 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER6.0 MILLIMETERS MM
THREAD DIRECTIONRIGHT-HAND
END ITEM IDENTIFICATIONDIESEL ENGINE
MATERIALSTEEL PROPERTY CLASS 10.9 OVERALL
THREAD SERIES DESIGNATORM
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MHC129?
MHC129 is a BOLT,MACHINE.
What is the NSN for MHC129?
MHC129 is cataloged in the U.S. Government catalog under NSN 5306-01-485-8355. 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.