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HR240-5-40 — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

HR240-5-40: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY UNS R56400 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN, head_diameter: 0.577 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-420-3603, 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
HR240-5-40
NSN: 5305-01-420-3603
FSC: 5305 — Screws
CAGE: L4528 — LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC (CAN)
SPECIFICATIONS
materialTITANIUM ALLOY UNS R56400 OVERALL
head_styleFLAT COUNTERSUNK
grip_length2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
head_diameter0.577 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
thread_length0.469 INCHES NOMINAL IN
surface_finish32.0 MICROINCHES THREADS
fastener_length2.954 INCHES MINIMUM AND 2.984 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
internal_drive_styleOFFSET CRUCIFORM (TORQUE SET)
NSN5305-01-420-3603
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: HR240-5-40 · 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
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
FASTENER LENGTH: 2.954 INCHES MINIMUM AND 2.984 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.469 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
FASTENER LENGTH2.954 INCHES MINIMUM AND 2.984 INCHES MAXIMUM IN
THREAD LENGTH0.469 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 6
03A174-5-40Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
T009-5-40Reference document
Same NSN cross-reference
Reference document — Secondary reference
SC3102-5-40Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
123743-5-40Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PBF1417-5-40Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SLB146-5-40Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 HR240-5-40?
HR240-5-40 is a SCREW,CLOSE TOLERANCE.
What parts can replace HR240-5-40?
There are 6 known substitutes for HR240-5-40: 03A174-5-40, T009-5-40, SC3102-5-40 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HR240-5-40?
HR240-5-40 is cataloged in the U.S. Government catalog under NSN 5305-01-420-3603. 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.