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Technical Data Sheet
PartsTable / COMPONENT / MIL-F-18240
MIL-F-18240 ✓ 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 SETSCREW is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, head_style: HEXAGON EXTENDED WASHER, thread_class: 3A A, thread_length: 0.500 INCHES NOMINAL IN, fastener_length: 0.375 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-060-2118, 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
MIL-F-18240
NSN: 5305-00-060-2118
FSC: 5305
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
head_styleHEXAGON EXTENDED WASHER
thread_class3A A
thread_length0.500 INCHES NOMINAL IN
fastener_length0.375 INCHES NOMINAL IN
thread_directionRIGHT-HAND
end_item_identificationWEAPONS LOADING EMERGENCY HANDLING ARRANGEMENT, NSSN CLASS SUB
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNRC
NSN5305-00-060-2118
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MIL-F-18240 · 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
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
THREAD QUANTITY PER INCH: 40
•
FASTENER LENGTH: 0.250 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
LOCKING FEATURE: PATCH OR PELLET OR STRIP THREADS
•
COUNTERSINK ANGLE: 100.0 DEGREES NOMINAL
•
THREAD LENGTH: 0.250 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
THREAD QUANTITY PER INCH40
FASTENER LENGTH0.250 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATUREPATCH OR PELLET OR STRIP THREADS
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
THREAD LENGTH0.250 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
SURFACE TREATMENTPASSIVATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
LL24693C2Interchangeable
Same NIIN cross-reference
interchangeable
LL57G40P4Interchangeable
Same NIIN cross-reference
interchangeable
107256-1003Interchangeable
Same NIIN cross-reference
interchangeable
911295-0804Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-F-18240?
MIL-F-18240 is a SETSCREW.
What parts can replace MIL-F-18240?
There are 4 known substitutes for MIL-F-18240: LL24693C2, LL57G40P4, 107256-1003 and 1 more. Substitute compatibility should be verified for your specific system.
Is MIL-F-18240 still available?
MIL-F-18240 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026