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491B0700066-618 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

491B0700066-618: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY AND ALUMINUM ALLOY OVERALL, head_style: HEXAGON, head_height: 0.386 INCHES NOMINAL IN, fastener_length: 1.910 INCHES NOMINAL IN, features_provided: CETYL ALCOHOL LUBRICANT, width_between_flats: 0.386 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-624-6735, 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
491B0700066-618
NSN: 5306-01-624-6735
FSC: 5306 — Bolts
CAGE: 1B6R3 — MRA SYSTEMS, LLC (USA)
SPECIFICATIONS
materialTITANIUM ALLOY AND ALUMINUM ALLOY OVERALL
head_styleHEXAGON
head_height0.386 INCHES NOMINAL IN
fastener_length1.910 INCHES NOMINAL IN
features_providedCETYL ALCOHOL LUBRICANT
width_between_flats0.386 INCHES NOMINAL IN
end_item_identificationC-5 AVIONICS MOD PROGRAM (AMP); CF6-80C2 L1F; NHA 491F1313000-010 FIXED STRUCTURE ASSEMBLY-LH
part_name_assigned_by_controlling_agencyFASTENER-THREADED, DOUBLE FLUSH
NSN5306-01-624-6735
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 491B0700066-618 · 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: 0.386 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.910 INCHES NOMINAL IN
•
FEATURES PROVIDED: CETYL ALCOHOL LUBRICANT
•
HEAD STYLE: HEXAGON
•
WIDTH BETWEEN FLATS: 0.386 INCHES NOMINAL IN
•
MATERIAL: TITANIUM ALLOY AND ALUMINUM ALLOY OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.386 INCHES NOMINAL IN
FASTENER LENGTH1.910 INCHES NOMINAL IN
FEATURES PROVIDEDCETYL ALCOHOL LUBRICANT
HEAD STYLEHEXAGON
WIDTH BETWEEN FLATS0.386 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYFASTENER-THREADED, DOUBLE FLUSH
END ITEM IDENTIFICATIONC-5 AVIONICS MOD PROGRAM (AMP); CF6-80C2 L1F; NHA 491F1313000-010 FIXED STRUCTURE ASSEMBLY-LH
MATERIALTITANIUM ALLOY AND ALUMINUM ALLOY OVERALL
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

No substitute or cross-reference records for this part.

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 491B0700066-618?
491B0700066-618 is a BOLT,MACHINE.
What is the NSN for 491B0700066-618?
491B0700066-618 is cataloged in the U.S. Government catalog under NSN 5306-01-624-6735. 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.