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Technical Data Sheet
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14066913 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

14066913: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.272 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.655 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN, fastener_length: 0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN, thread_direction: LEFT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-156-8680, 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
14066913
NSN: 5306-01-156-8680
FSC: 5306 — Bolts
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.272 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
thread_class2A A
thread_length0.655 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
fastener_length0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
thread_directionLEFT-HAND
features_providedFINISHED HEAD
width_between_flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
nominal_thread_diameter0.438 INCHES IN
minimum_tensile_strength190000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch20
thread_series_designatorUNRF
NSN5306-01-156-8680
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 14066913 · 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: 0.272 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.655 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: LEFT-HAND
•
WIDTH BETWEEN FLATS: 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.272 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
FASTENER LENGTH0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
THREAD LENGTH0.655 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.438 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLEHEXAGON
THREAD DIRECTIONLEFT-HAND
WIDTH BETWEEN FLATS0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH190000 POUNDS PER SQUARE INCH LBS
THREAD CLASS2A A
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 1
1241564Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 14066913?
14066913 is a BOLT,MACHINE.
What parts can replace 14066913?
There is 1 known substitute for 14066913: 1241564. Substitute compatibility should be verified for your specific system.
What is the NSN for 14066913?
14066913 is cataloged in the U.S. Government catalog under NSN 5306-01-156-8680. 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.