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3M18C3-2 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3M18C3-2: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.125 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.360 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN, fastener_length: 0.422 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN, width_between_flats: 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-094-4752, 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
3M18C3-2
NSN: 5306-00-094-4752
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.125 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
thread_class2A A
thread_length0.360 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
fastener_length0.422 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
width_between_flats0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
NSN5306-00-094-4752
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3M18C3-2 · 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: 0.125 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.422 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.360 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
•
HEAD STYLE: HEXAGON
•
WIDTH BETWEEN FLATS: 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
FASTENER LENGTH0.422 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
THREAD LENGTH0.360 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
WIDTH BETWEEN FLATS0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
THREAD CLASS2A A
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 3M18C3-2?
3M18C3-2 is a BOLT,MACHINE.
What is the NSN for 3M18C3-2?
3M18C3-2 is cataloged in the U.S. Government catalog under NSN 5306-00-094-4752. 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.