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3G2838 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3G2838: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include fastener_length: 1.625 INCHES NOMINAL IN, special_features: 12 POINT HEAD, end_item_identification: ENGINE DEBROUSSAILLEUR CATERPILLAR 953B, nominal_thread_diameter: 0.375 INCHES IN, thread_series_designator: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5305-01-429-2109, 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
3G2838
NSN: 5305-01-429-2109
FSC: 5305 — Screws
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
fastener_length1.625 INCHES NOMINAL IN
special_features12 POINT HEAD
end_item_identificationENGINE DEBROUSSAILLEUR CATERPILLAR 953B
nominal_thread_diameter0.375 INCHES IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-429-2109
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3G2838 · 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: 1.625 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.625 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
SPECIAL FEATURES12 POINT HEAD
END ITEM IDENTIFICATIONENGINE DEBROUSSAILLEUR CATERPILLAR 953B
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
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 3G2838?
3G2838 is a SCREW,MACHINE.
What is the NSN for 3G2838?
3G2838 is cataloged in the U.S. Government catalog under NSN 5305-01-429-2109. 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.