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HT4025L3D16 — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

HT4025L3D16: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN, head_diameter: 0.376 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-522-9607, 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
HT4025L3D16
NSN: 5305-00-522-9607
FSC: 5305 — Screws
CAGE: L4528 — LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC (CAN)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleFLAT COUNTERSUNK
grip_length0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
head_diameter0.376 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
thread_length0.381 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
fastener_length1.391 INCHES MINIMUM AND 1.421 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
surface_treatmentPASSIVATE OVERALL
internal_drive_styleHIGH-TORQUE
NSN5305-00-522-9607
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: HT4025L3D16 · 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
•
FASTENER LENGTH: 1.391 INCHES MINIMUM AND 1.421 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.381 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.070 INCHES MINIMUM AND 0.075 INCHES MAXIMUM FIRST HOLE IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
•
GRIP DIAMETER: 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.391 INCHES MINIMUM AND 1.421 INCHES MAXIMUM IN
THREAD LENGTH0.381 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
SHANK UNTHREADED HOLE DIAMETER0.070 INCHES MINIMUM AND 0.075 INCHES MAXIMUM FIRST HOLE IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
GRIP DIAMETER0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
INTERNAL DRIVE STYLEHIGH-TORQUE
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 2
ST3M454-3DL16Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
11905-3DL16Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HT4025L3D16?
HT4025L3D16 is a SCREW,CLOSE TOLERANCE.
What parts can replace HT4025L3D16?
There are 2 known substitutes for HT4025L3D16: ST3M454-3DL16, 11905-3DL16. Substitute compatibility should be verified for your specific system.
What is the NSN for HT4025L3D16?
HT4025L3D16 is cataloged in the U.S. Government catalog under NSN 5305-00-522-9607. 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.