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Technical Data Sheet
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178-3707 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

178-3707: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, grip_length: 12.0 MILLIMETERS NOMINAL MM, head_height: 10.0 MILLIMETERS NOMINAL MM, thread_length: 38.0 MILLIMETERS NOMINAL MM, fastener_length: 50.0 MILLIMETERS NOMINAL MM, width_between_flats: 24.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-438-1753, 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
178-3707
NSN: 5306-01-438-1753
FSC: 5306 — Bolts
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
head_styleHEXAGON
grip_length12.0 MILLIMETERS NOMINAL MM
head_height10.0 MILLIMETERS NOMINAL MM
thread_length38.0 MILLIMETERS NOMINAL MM
fastener_length50.0 MILLIMETERS NOMINAL MM
width_between_flats24.0 MILLIMETERS NOMINAL MM
end_item_identificationUSED ON CAT 950F WHEEL LOADER TRACTOR
nominal_thread_diameter16.0 MILLIMETERS MM
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
thread_pitch_in_millimeters2.0
NSN5306-01-438-1753
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 178-3707 · 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
•
HEAD HEIGHT: 10.0 MILLIMETERS NOMINAL MM
•
FASTENER LENGTH: 50.0 MILLIMETERS NOMINAL MM
•
THREAD PITCH IN MILLIMETERS: 2.0
•
THREAD LENGTH: 38.0 MILLIMETERS NOMINAL MM
•
NOMINAL THREAD DIAMETER: 16.0 MILLIMETERS MM
•
HEAD STYLE: HEXAGON
•
GRIP LENGTH: 12.0 MILLIMETERS NOMINAL MM
•
WIDTH BETWEEN FLATS: 24.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
HEAD HEIGHT10.0 MILLIMETERS NOMINAL MM
FASTENER LENGTH50.0 MILLIMETERS NOMINAL MM
THREAD PITCH IN MILLIMETERS2.0
THREAD LENGTH38.0 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER16.0 MILLIMETERS MM
HEAD STYLEHEXAGON
GRIP LENGTH12.0 MILLIMETERS NOMINAL MM
WIDTH BETWEEN FLATS24.0 MILLIMETERS NOMINAL MM
END ITEM IDENTIFICATIONUSED ON CAT 950F WHEEL LOADER TRACTOR
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
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 1
6V5686Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 178-3707?
178-3707 is a BOLT,MACHINE.
What parts can replace 178-3707?
There is 1 known substitute for 178-3707: 6V5686. Substitute compatibility should be verified for your specific system.
What is the NSN for 178-3707?
178-3707 is cataloged in the U.S. Government catalog under NSN 5306-01-438-1753. This indicates validated use in U.S. government and defense supply chains.
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