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12340259-17 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12340259-17: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 0.306 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.490 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN, shoulder_shape: ROUND OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-597-0624, 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
12340259-17
NSN: 5306-01-597-0624
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height0.306 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
thread_class2A A
thread_length1.490 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
shoulder_shapeROUND OVERALL
fastener_length1.750 INCHES NOMINAL IN
shoulder_length0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM OVERALL IN
thread_directionRIGHT-HAND
shoulder_diameter0.562 INCHES NOMINAL OVERALL IN
surface_treatmentCHROMATE AND ZINC OVERALL
width_between_flats0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
NSN5306-01-597-0624
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12340259-17 · 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
•
EXTENDED WASHER THICKNESS: 0.070 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.306 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.750 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM OVERALL IN
•
EXTENDED WASHER DIAMETER: 0.850 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.562 INCHES NOMINAL OVERALL IN
•
THREAD LENGTH: 1.490 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND OVERALL
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.070 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
HEAD HEIGHT0.306 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
FASTENER LENGTH1.750 INCHES NOMINAL IN
SHOULDER LENGTH0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM OVERALL IN
EXTENDED WASHER DIAMETER0.850 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
SHOULDER DIAMETER0.562 INCHES NOMINAL OVERALL IN
THREAD LENGTH1.490 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
SHOULDER SHAPEROUND OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429, GRADE B ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.438 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 1
12340259Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 12340259-17?
12340259-17 is a BOLT,SHOULDER.
What parts can replace 12340259-17?
There is 1 known substitute for 12340259-17: 12340259. Substitute compatibility should be verified for your specific system.
What is the NSN for 12340259-17?
12340259-17 is cataloged in the U.S. Government catalog under NSN 5306-01-597-0624. 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.