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12378774 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12378774: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1137 OVERALL, head_height: 6.0 MILLIMETERS NOMINAL MM, head_diameter: 22.0 MILLIMETERS NOMINAL MM, thread_length: 37.60 MILLIMETERS NOMINAL MM, shoulder_shape: ROUND FIRST SHOULDER, fastener_length: 40.10 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-371-0876, 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
12378774
NSN: 5306-01-371-0876
FSC: 5306 — Bolts
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1137 OVERALL
head_height6.0 MILLIMETERS NOMINAL MM
head_diameter22.0 MILLIMETERS NOMINAL MM
thread_length37.60 MILLIMETERS NOMINAL MM
shoulder_shapeROUND FIRST SHOULDER
fastener_length40.10 MILLIMETERS NOMINAL MM
shoulder_length10.5 MILLIMETERS NOMINAL FIRST SHOULDER MM
special_featuresSURFACE TREATMENT YELLOW OR OLIVE DRAB GREEN.
thread_directionRIGHT-HAND
shoulder_diameter10.5 MILLIMETERS NOMINAL FIRST SHOULDER MM
surface_treatmentZINC AND CHROMATE OVERALL
end_item_identificationMRAP - COMMON NSN - USED ON 3 MRAP VARIANTS AND 1 OTHER WEAPON SYSTEM; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
NSN5306-01-371-0876
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12378774 · 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: 6.0 MILLIMETERS NOMINAL MM
•
EXTERNAL THREAD TOLERANCE CLASS: 6G G
•
FASTENER LENGTH: 40.10 MILLIMETERS NOMINAL MM
•
SHOULDER LENGTH: 10.5 MILLIMETERS NOMINAL FIRST SHOULDER MM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633,TY2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER DIAMETER: 10.5 MILLIMETERS NOMINAL FIRST SHOULDER MM
•
THREAD PITCH IN MILLIMETERS: 1.25
•
THREAD LENGTH: 37.60 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
HEAD HEIGHT6.0 MILLIMETERS NOMINAL MM
EXTERNAL THREAD TOLERANCE CLASS6G G
FASTENER LENGTH40.10 MILLIMETERS NOMINAL MM
SHOULDER LENGTH10.5 MILLIMETERS NOMINAL FIRST SHOULDER MM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633,TY2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER10.5 MILLIMETERS NOMINAL FIRST SHOULDER MM
THREAD PITCH IN MILLIMETERS1.25
THREAD LENGTH37.60 MILLIMETERS NOMINAL MM
SHOULDER SHAPEROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A576 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
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FREQUENTLY ASKED QUESTIONS
What is 12378774?
12378774 is a BOLT,SHOULDER.
What is the NSN for 12378774?
12378774 is cataloged in the U.S. Government catalog under NSN 5306-01-371-0876. This indicates validated use in U.S. government and defense supply chains.
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