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Technical Data Sheet
PartsTable / COMPONENT / 5186941
5186941 ✓ 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, grip_length: 0.140 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN, head_height: 0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.906 INCHES MINIMUM AND 0.924 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 5306-00-518-6941, 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
5186941
NSN: 5306-00-518-6941
FSC: 5306
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length0.140 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
head_height0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN
thread_class3A A
thread_length0.906 INCHES MINIMUM AND 0.924 INCHES MAXIMUM IN
fastener_length0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
special_featuresWITH ONE DRILLED HOLE IN HEAD
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentZINC OVERALL
NSN5306-00-518-6941
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5186941 · 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
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
THREAD LENGTH: 0.906 INCHES MINIMUM AND 0.924 INCHES MAXIMUM IN
•
SURFACE TREATMENT: ZINC OVERALL
•
FEATURES PROVIDED: FINISHED HEAD
•
FASTENER LENGTH: 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD LENGTH0.906 INCHES MINIMUM AND 0.924 INCHES MAXIMUM IN
SURFACE TREATMENTZINC OVERALL
FEATURES PROVIDEDFINISHED HEAD
FASTENER LENGTH0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SPECIAL FEATURESWITH ONE DRILLED HOLE IN HEAD
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
THREAD SERIES DESIGNATORUNF
THREAD CLASS3A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
200205Interchangeable
interchangeable cross-reference
interchangeable
721169 ITEM 44Interchangeable
interchangeable cross-reference
interchangeable
721169Interchangeable
interchangeable cross-reference
interchangeable
90D5Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5186941?
5186941 is a BOLT,MACHINE.
What parts can replace 5186941?
There are 4 known substitutes for 5186941: 200205, 721169 ITEM 44, 721169 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5186941?
5186941 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-518-6941. 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