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6768177 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6768177: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 3135 OR STEEL COMP 8740 OR STEEL COMP 4140 OR STEEL COMP 5140 OVERALL, head_style: HEXAGON, head_height: 0.227 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.337 INCHES MINIMUM AND 0.399 INCHES MAXIMUM IN, fastener_length: 3.344 INCHES MINIMUM AND 3.406 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-174-4168, 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
6768177
NSN: 5306-00-174-4168
FSC: 5306 — Bolts
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
materialSTEEL COMP 3135 OR STEEL COMP 8740 OR STEEL COMP 4140 OR STEEL COMP 5140 OVERALL
head_styleHEXAGON
head_height0.227 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
thread_class2A A
thread_length0.337 INCHES MINIMUM AND 0.399 INCHES MAXIMUM IN
fastener_length3.344 INCHES MINIMUM AND 3.406 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
width_between_flats0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch24
NSN5306-00-174-4168
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6768177 · 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: 0.227 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.344 INCHES MINIMUM AND 3.406 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.337 INCHES MINIMUM AND 0.399 INCHES MAXIMUM IN
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
FEATURES PROVIDED: UNFINISHED HEAD
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.227 INCHES MINIMUM AND 0.242 INCHES MAXIMUM IN
FASTENER LENGTH3.344 INCHES MINIMUM AND 3.406 INCHES MAXIMUM IN
THREAD LENGTH0.337 INCHES MINIMUM AND 0.399 INCHES MAXIMUM IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
FEATURES PROVIDEDUNFINISHED HEAD
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
SUBSTITUTES & CROSS-REFERENCES 1
7708201Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6768177?
6768177 is a BOLT,MACHINE.
What parts can replace 6768177?
There is 1 known substitute for 6768177: 7708201. Substitute compatibility should be verified for your specific system.
What is the NSN for 6768177?
6768177 is cataloged in the U.S. Government catalog under NSN 5306-00-174-4168. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.