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Technical Data Sheet
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12418540-001 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12418540-001: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: FLAT FILLISTER, head_height: 4.0 MILLIMETERS NOMINAL MM, thread_class: 2A A, head_diameter: 17.4 MILLIMETERS NOMINAL MM, thread_length: 14.3 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-446-1975, 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
12418540-001
NSN: 5306-01-446-1975
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleFLAT FILLISTER
head_height4.0 MILLIMETERS NOMINAL MM
thread_class2A A
head_diameter17.4 MILLIMETERS NOMINAL MM
thread_length14.3 MILLIMETERS NOMINAL MM
shoulder_shapeROUND ALL SHOULDERS
fastener_length25.5 MILLIMETERS NOMINAL MM
shoulder_length4.8 MILLIMETERS NOMINAL SECOND SHOULDER MM
thread_directionRIGHT-HAND
shoulder_diameter11.1 MILLIMETERS NOMINAL FIRST SHOULDER MM
nominal_thread_diameter0.312 INCHES IN
NSN5306-01-446-1975
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12418540-001 · 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: 4.0 MILLIMETERS NOMINAL MM
•
FASTENER LENGTH: 25.5 MILLIMETERS NOMINAL MM
•
SHOULDER LENGTH: 4.8 MILLIMETERS NOMINAL SECOND SHOULDER MM
•
SHOULDER DIAMETER: 11.1 MILLIMETERS NOMINAL FIRST SHOULDER MM
•
THREAD LENGTH: 14.3 MILLIMETERS NOMINAL MM
•
SHOULDER SHAPE: ROUND ALL SHOULDERS
TECHNICAL CHARACTERISTICS
HEAD HEIGHT4.0 MILLIMETERS NOMINAL MM
FASTENER LENGTH25.5 MILLIMETERS NOMINAL MM
SHOULDER LENGTH4.8 MILLIMETERS NOMINAL SECOND SHOULDER MM
SHOULDER LENGTH6.4 MILLIMETERS NOMINAL FIRST SHOULDER MM
SHOULDER DIAMETER11.1 MILLIMETERS NOMINAL FIRST SHOULDER MM
SHOULDER DIAMETER7.9 MILLIMETERS NOMINAL SECOND SHOULDER MM
THREAD LENGTH14.3 MILLIMETERS NOMINAL MM
SHOULDER SHAPEROUND ALL SHOULDERS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582, COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES 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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12418540-001?
12418540-001 is a BOLT,SHOULDER.
What is the NSN for 12418540-001?
12418540-001 is cataloged in the U.S. Government catalog under NSN 5306-01-446-1975. This indicates validated use in U.S. government and defense supply chains.
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