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Technical Data Sheet
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8L4308 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

8L4308: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_type: DRILLED, head_style: HEXAGON, head_height: 0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN, thread_class: 2A A, hole_diameter: 0.094 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-137-3475, 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
8L4308
NSN: 5306-00-137-3475
FSC: 5306 — Bolts
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
head_styleHEXAGON
head_height0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
thread_class2A A
hole_diameter0.094 INCHES NOMINAL IN
hole_quantity1
thread_length0.090 INCHES MINIMUM AND 1.170 INCHES MAXIMUM IN
fastener_length2.730 INCHES MINIMUM AND 2.770 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.798 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
NSN5306-00-137-3475
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 8L4308 · 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: 0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.730 INCHES MINIMUM AND 2.770 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.090 INCHES MINIMUM AND 1.170 INCHES MAXIMUM IN
•
HOLE CONFIGURATION STYLE: HEXAGON FLATS
•
NOMINAL THREAD DIAMETER: 0.562 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.348 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
FASTENER LENGTH2.730 INCHES MINIMUM AND 2.770 INCHES MAXIMUM IN
THREAD LENGTH0.090 INCHES MINIMUM AND 1.170 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLEHEXAGON FLATS
NOMINAL THREAD DIAMETER0.562 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.798 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
THREAD CLASS2A A
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
8L4308-00Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8L4308?
8L4308 is a BOLT,MACHINE.
What parts can replace 8L4308?
There is 1 known substitute for 8L4308: 8L4308-00. Substitute compatibility should be verified for your specific system.
What is the NSN for 8L4308?
8L4308 is cataloged in the U.S. Government catalog under NSN 5306-00-137-3475. 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.