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4H2438 — BOLT,EYE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4H2438: BOLT,EYE.

The BOLT,EYE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, shank_length: 1.500 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 1.000 INCHES NOMINAL IN, overall_length: 2.437 INCHES NOMINAL IN, style_designator: ROUND, OPEN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-878-2189, 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
4H2438
NSN: 5306-00-878-2189
FSC: 5306 — Bolts
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
shank_length1.500 INCHES NOMINAL IN
thread_class3A A
thread_length1.000 INCHES NOMINAL IN
overall_length2.437 INCHES NOMINAL IN
style_designatorROUND, OPEN
thread_directionRIGHT-HAND
eye_stock_diameter0.375 INCHES NOMINAL IN
eye_inside_diameter0.187 INCHES NOMINAL IN
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch16
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-00-878-2189
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4H2438 · 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
•
EYE STOCK DIAMETER: 0.375 INCHES NOMINAL IN
•
THREAD LENGTH: 1.000 INCHES NOMINAL IN
•
SHANK LENGTH: 1.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND, OPEN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
EYE INSIDE DIAMETER: 0.187 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
EYE STOCK DIAMETER0.375 INCHES NOMINAL IN
THREAD LENGTH1.000 INCHES NOMINAL IN
SHANK LENGTH1.500 INCHES NOMINAL IN
STYLE DESIGNATORROUND, OPEN
OVERALL LENGTH2.437 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
THREAD DIRECTIONRIGHT-HAND
EYE INSIDE DIAMETER0.187 INCHES NOMINAL IN
THREAD CLASS3A A
THREAD QUANTITY PER INCH16
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
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 4H2438?
4H2438 is a BOLT,EYE.
What is the NSN for 4H2438?
4H2438 is cataloged in the U.S. Government catalog under NSN 5306-00-878-2189. 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.