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Technical Data Sheet
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15-043B — Technical Data Sheet

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— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The OIL PUMP ASSEMBLY,ENGINE is a the manufacturer industrial component. Key specifications include scale_type: ETCHED STEM, design_type: FLUCTUATING, overall_length: 610.000 MILLIMETERS NOMINAL MM, actuating_medium: MERCURY, scale_smallest_increment: 0.1 DEG CELSIUS. This part is cataloged in the Federal Logistics Information System under NSN 3120-00-662-8421, 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
15-043B
NSN: 3120-00-662-8421
FSC: 3120
CAGE: 28265 — HERCULES ENGINE CO INC (USA)
SPECIFICATIONS
scale_typeETCHED STEM
design_typeFLUCTUATING
overall_length610.000 MILLIMETERS NOMINAL MM
actuating_mediumMERCURY
scale_smallest_increment0.1 DEG CELSIUS
NSN3120-00-662-8421
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 15-043B · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BODY INSIDE DIAMETER: 2.1230 INCHES MINIMUM AND 2.1235 INCHES MAXIMUM IN
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 HOLE
•
HOLE DIAMETER: 0.5156 INCHES NOMINAL FIRST IN
•
MATERIAL: COPPER ALLOY OUTER LAYER
•
CORNER SHAPE: CHAMFERED OUTSIDE LEFT CORNER
•
BODY OUTSIDE DIAMETER: 2.3775 INCHES MINIMUM AND 2.3780 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
BODY INSIDE DIAMETER2.1230 INCHES MINIMUM AND 2.1235 INCHES MAXIMUM IN
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE
HOLE DIAMETER0.5156 INCHES NOMINAL FIRST IN
MATERIALCOPPER ALLOY OUTER LAYER
CORNER SHAPECHAMFERED OUTSIDE LEFT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
BODY OUTSIDE DIAMETER2.3775 INCHES MINIMUM AND 2.3780 INCHES MAXIMUM IN
SPECIAL FEATURESNOTCH 3/16 IN. RADIUS IN
MATERIALTIN ALLOY INNER LAYER
OVERALL LENGTH1.8075 INCHES MINIMUM AND 1.8175 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
150 43InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2012-T 43InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1340InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
53-425InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
53-425-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
651321InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 15-043B?
15-043B is a OIL PUMP ASSEMBLY,ENGINE.
What parts can replace 15-043B?
There are 22 known substitutes for 15-043B: 150 43, 2012-T 43, 1340 and 19 more. Substitute compatibility should be verified for your specific system.
Is 15-043B still available?
15-043B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026