PartsTable
Technical Data Sheet
PartsTable / COMPONENT / MIL-DTL-18240F(1)
MIL-DTL-18240F(1) ✓ 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 MIL-DTL-18240F(1) is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-078-9640, 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-DTL-18240F(1)
NSN: 5305-00-078-9640
FSC: 5305
CAGE: 26233 — NYLOK LLC (USA)
SPECIFICATIONS
Part NumberMIL-DTL-18240F(1)
NSN5305-00-078-9640
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MIL-DTL-18240F(1) · 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
•
THREAD QUANTITY PER INCH: 40
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
FASTENER LENGTH: 0.500 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD DIAMETER: 0.257 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN
•
HEAD STYLE: FLAT COUNTERSUNK
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH40
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUNF
FASTENER LENGTH0.500 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD DIAMETER0.257 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
FF-S-200Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-18240(F)1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-18240Interchangeable
interchangeable cross-reference
interchangeable
FF-S-92C(1)Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy MIL-DTL-18240F(1)?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-18240F(1)?
MIL-DTL-18240F(1) is a MIL-DTL-18240F(1).
What parts can replace MIL-DTL-18240F(1)?
There are 4 known substitutes for MIL-DTL-18240F(1): FF-S-200, MIL-DTL-18240(F)1, MIL-DTL-18240 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-DTL-18240F(1)?
MIL-DTL-18240F(1) is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-078-9640. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MIL-DTL-18240F(1)

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026