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Technical Data Sheet
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5L9018 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5L9018: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, grip_length: 0.500 INCHES NOMINAL IN, head_height: 0.250 INCHES NOMINAL IN, fastener_length: 1.750 INCHES NOMINAL IN, special_features: FLANGE TYPE: SMOOTH FLANGE FACE, head_major_diameter: 0.370 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-375-6021, 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
5L9018
NSN: 5306-01-375-6021
FSC: 5306 — Bolts
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
grip_length0.500 INCHES NOMINAL IN
head_height0.250 INCHES NOMINAL IN
fastener_length1.750 INCHES NOMINAL IN
special_featuresFLANGE TYPE: SMOOTH FLANGE FACE
head_major_diameter0.370 INCHES NOMINAL IN
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch1.750
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
part_name_assigned_by_controlling_agencySOCKET HEAD BOLT
NSN5306-01-375-6021
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5L9018 · 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: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.750 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
GRIP LENGTH: 0.500 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 1.750
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.250 INCHES NOMINAL IN
FASTENER LENGTH1.750 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
GRIP LENGTH0.500 INCHES NOMINAL IN
SPECIAL FEATURESFLANGE TYPE: SMOOTH FLANGE FACE
PART NAME ASSIGNED BY CONTROLLING AGENCYSOCKET HEAD BOLT
THREAD QUANTITY PER INCH1.750
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HEAD MAJOR DIAMETER0.370 INCHES NOMINAL IN
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5L9018?
5L9018 is a BOLT,MACHINE.
What is the NSN for 5L9018?
5L9018 is cataloged in the U.S. Government catalog under NSN 5306-01-375-6021. 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.