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2281884 — CORE,AFTERCOOLER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2281884: CORE,AFTERCOOLER.

The CORE,AFTERCOOLER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.375 INCHES NOMINAL IN, thread_class: 1A A, thread_length: 1.125 INCHES MINIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-741-2744, 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
2281884
NSN: 5306-00-741-2744
NIINs: 007412744, 011343754
FSC: 5306 — Bolts
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.375 INCHES NOMINAL IN
thread_class1A A
thread_length1.125 INCHES MINIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length2.812 INCHES NOMINAL IN
hardness_rating85.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
shoulder_length0.812 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
features_providedCASEHARDENED
shoulder_diameter0.560 INCHES NOMINAL FIRST SHOULDER IN
NSN5306-00-741-2744
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2281884 · 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
•
HEAD HEIGHT: 0.375 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.812 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.812 INCHES NOMINAL FIRST SHOULDER IN
•
SHOULDER DIAMETER: 0.560 INCHES NOMINAL FIRST SHOULDER IN
•
THREAD LENGTH: 1.125 INCHES MINIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
HARDNESS RATING: 85.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.375 INCHES NOMINAL IN
FASTENER LENGTH2.812 INCHES NOMINAL IN
SHOULDER LENGTH0.812 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER DIAMETER0.560 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH1.125 INCHES MINIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
HARDNESS RATING85.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
FEATURES PROVIDEDCASEHARDENED
HEAD STYLEHEXAGON
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2281884?
2281884 is a CORE,AFTERCOOLER.
What is the NSN for 2281884?
2281884 is cataloged in the U.S. Government catalog under NSN 5306-00-741-2744. 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.