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3G4898 — SCREW,TAPPING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3G4898: SCREW,TAPPING.

The SCREW,TAPPING is a the manufacturer industrial component. Key specifications include head_style: OVAL COUNTERSUNK, head_diameter: 0.340 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, countersink_angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM, surface_treatment: CADMIUM OVERALL, internal_drive_style: CROSS RECESS TYPE 1, nonmachine_thread_style: BLUNT (TYPE TT). This part is cataloged in the U.S.

Government catalog under NSN 5305-01-181-8078, 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
3G4898
NSN: 5305-01-181-8078
FSC: 5305 — Screws
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
head_styleOVAL COUNTERSUNK
head_diameter0.340 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
surface_treatmentCADMIUM OVERALL
internal_drive_styleCROSS RECESS TYPE 1
nonmachine_thread_styleBLUNT (TYPE TT)
nonmachine_nominal_thread_diameter0.190 INCHES IN
NSN5305-01-181-8078
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3G4898 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
NONMACHINE THREAD STYLE: BLUNT (TYPE TT)
•
HEAD STYLE: OVAL COUNTERSUNK
•
SURFACE TREATMENT: CADMIUM OVERALL
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
•
HEAD DIAMETER: 0.340 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER0.190 INCHES IN
NONMACHINE THREAD STYLEBLUNT (TYPE TT)
HEAD STYLEOVAL COUNTERSUNK
SURFACE TREATMENTCADMIUM OVERALL
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
HEAD DIAMETER0.340 INCHES MINIMUM AND 0.385 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3G4898?
3G4898 is a SCREW,TAPPING.
What is the NSN for 3G4898?
3G4898 is cataloged in the U.S. Government catalog under NSN 5305-01-181-8078. 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.