PartsTable
Technical Data Sheet
Download PDF

12340259-3 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12340259-3: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 0.376 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.820 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-315-7086, 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
12340259-3
NSN: 5306-01-315-7086
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height0.376 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN
thread_class2A A
thread_length0.820 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length1.350 INCHES NOMINAL IN
shoulder_length0.520 INCHES MINIMUM AND 0.530 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.500 INCHES NOMINAL FIRST SHOULDER IN
surface_treatmentZINC AND CHROMATE OVERALL
width_between_flats0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
NSN5306-01-315-7086
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12340259-3 · 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: 0.376 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.350 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.520 INCHES MINIMUM AND 0.530 INCHES MAXIMUM FIRST SHOULDER IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 0.850 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.500 INCHES NOMINAL FIRST SHOULDER IN
•
THREAD LENGTH: 0.820 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.070 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
HEAD HEIGHT0.376 INCHES MINIMUM AND 0.445 INCHES MAXIMUM IN
FASTENER LENGTH1.350 INCHES NOMINAL IN
SHOULDER LENGTH0.520 INCHES MINIMUM AND 0.530 INCHES MAXIMUM FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER0.850 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
SHOULDER DIAMETER0.500 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH0.820 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429,GR8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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
Ready to buy 12340259-3?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 12340259-3?
12340259-3 is a BOLT,SHOULDER.
What is the NSN for 12340259-3?
12340259-3 is cataloged in the U.S. Government catalog under NSN 5306-01-315-7086. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 12340259-3

✓ 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.