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Technical Data Sheet
PartsTable / COMPONENT / 10X381
10X381 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The BOLT,WELDING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: PAN NO. 2, head_height: 0.085 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.549 INCHES NOMINAL IN, thread_length: 0.562 INCHES MINIMUM IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-778-9725, 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
10X381
NSN: 5306-00-778-9725
FSC: 5306
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_stylePAN NO. 2
head_height0.085 INCHES NOMINAL IN
thread_class2A A
head_diameter0.549 INCHES NOMINAL IN
thread_length0.562 INCHES MINIMUM IN
fastener_length0.625 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
welding_projection_quantity3 BEARING SURFACE OF HEAD
NSN5306-00-778-9725
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 10X381 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD LENGTH: 0.562 INCHES MINIMUM IN
•
HEAD DIAMETER: 0.549 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HEAD HEIGHT: 0.085 INCHES NOMINAL IN
•
WELDING PROJECTION QUANTITY: 3 BEARING SURFACE OF HEAD
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.562 INCHES MINIMUM IN
HEAD DIAMETER0.549 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
HEAD HEIGHT0.085 INCHES NOMINAL IN
WELDING PROJECTION QUANTITY3 BEARING SURFACE OF HEAD
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH20
HEAD STYLEPAN NO. 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
580C5Interchangeable
interchangeable cross-reference
interchangeable
19114Interchangeable
interchangeable cross-reference
interchangeable
P250B5144Interchangeable
interchangeable cross-reference
interchangeable
G350154S2Interchangeable
interchangeable cross-reference
interchangeable
047B3800-75Interchangeable
interchangeable cross-reference
interchangeable
MS35206-286Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10X381?
10X381 is a BOLT,WELDING.
What parts can replace 10X381?
There are 12 known substitutes for 10X381: 580C5, 19114, P250B5144 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10X381?
10X381 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-778-9725. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026