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Technical Data Sheet
PartsTable / COMPONENT / 391959
391959 ✓ 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 COMP 3140 OVERALL, head_style: HEXAGON, grip_length: 5.312 INCHES NOMINAL IN, head_height: 0.469 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.188 INCHES MAXIMUM 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 5306-00-732-9611, 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
391959
NSN: 5306-00-732-9611
FSC: 5306
CAGE: 65282 — WHITE MOTOR CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 3140 OVERALL
head_styleHEXAGON
grip_length5.312 INCHES NOMINAL IN
head_height0.469 INCHES NOMINAL IN
thread_class2A A
thread_length1.188 INCHES MAXIMUM IN
fastener_length6.500 INCHES NOMINAL IN
special_featuresMATERIAL COLD DRAWN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.875 INCHES NOMINAL IN
nominal_thread_diameter0.625 INCHES IN
NSN5306-00-732-9611
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 391959 · 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 LENGTH: 1.188 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
•
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER: 0.375 INCHES NOMINAL FIRST HOLE IN
•
THREAD SERIES DESIGNATOR: UNF
•
SHANK UNTHREADED HOLE DIAMETER: 0.156 INCHES NOMINAL FIRST HOLE IN
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
FASTENER LENGTH: 6.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH1.188 INCHES MAXIMUM IN
THREAD CLASS2A A
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER0.375 INCHES NOMINAL FIRST HOLE IN
THREAD SERIES DESIGNATORUNF
SPECIAL FEATURESMATERIAL COLD DRAWN
SHANK UNTHREADED HOLE DIAMETER0.156 INCHES NOMINAL FIRST HOLE IN
NOMINAL THREAD DIAMETER0.625 INCHES IN
FASTENER LENGTH6.500 INCHES NOMINAL IN
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH5.312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
8380-7239Interchangeable
interchangeable cross-reference
interchangeable
347-217-014Interchangeable
interchangeable cross-reference
interchangeable
1923-0045Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-296 TY3SEAInterchangeable
interchangeable cross-reference
interchangeable
24123Interchangeable
interchangeable cross-reference
interchangeable
1266Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 391959?
391959 is a BOLT,MACHINE.
What parts can replace 391959?
There are 21 known substitutes for 391959: 8380-7239, 347-217-014, 1923-0045 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 391959?
391959 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-732-9611. 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