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Technical Data Sheet
PartsTable / COMPONENT / X03386
X03386 ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.312 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.688 INCHES MAXIMUM IN, fastener_length: 0.688 INCHES NOMINAL 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 5306-00-276-8166, 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
X03386
NSN: 5306-00-276-8166
FSC: 5306
CAGE: 14351 — TELEDYNE CONTINENTAL MOTORS INDUSTRIAL PRODUCTS DIV TELEDYNE INDUSTRIES INC SUB OF TELEDYNE INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.312 INCHES NOMINAL IN
thread_class2A A
thread_length0.688 INCHES MAXIMUM IN
fastener_length0.688 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
width_between_flats0.625 INCHES NOMINAL IN
nominal_thread_diameter0.438 INCHES IN
thread_quantity_per_inch14
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-00-276-8166
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: X03386 · 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
•
WIDTH BETWEEN FLATS: 0.625 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
THREAD CLASS: 2A A
•
THREAD DIRECTION: RIGHT-HAND
•
FEATURES PROVIDED: UNFINISHED HEAD
•
THREAD QUANTITY PER INCH: 14
•
HEAD STYLE: HEXAGON
•
HEAD HEIGHT: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH BETWEEN FLATS0.625 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.438 INCHES IN
THREAD CLASS2A A
THREAD DIRECTIONRIGHT-HAND
FEATURES PROVIDEDUNFINISHED HEAD
THREAD QUANTITY PER INCH14
HEAD STYLEHEXAGON
HEAD HEIGHT0.312 INCHES NOMINAL IN
THREAD LENGTH0.688 INCHES MAXIMUM IN
FASTENER LENGTH0.688 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
A5000Interchangeable
interchangeable cross-reference
interchangeable
122-6722635 PC 37Interchangeable
interchangeable cross-reference
interchangeable
191758Interchangeable
interchangeable cross-reference
interchangeable
AS4841Interchangeable
interchangeable cross-reference
interchangeable
AN818-5DInterchangeable
interchangeable cross-reference
interchangeable
290-5DInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is X03386?
X03386 is a BOLT,MACHINE.
What parts can replace X03386?
There are 11 known substitutes for X03386: A5000, 122-6722635 PC 37, 191758 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for X03386?
X03386 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-276-8166. 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