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Technical Data Sheet
PartsTable / COMPONENT / 1837P
1837P ✓ Verified by PartsTable
— · 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

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include diameter: 3.000 INCHES NOMINAL IN, material: ALUMINUM, head_style: FLAT, oil_groove: NOT INCLUDED, skirt_type: SEMISPLIT, carbon_groove: INCLUDED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-409-0685, 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
1837P
NSN: 3120-00-409-0685
FSC: 3120
CAGE: K5269 — SKF (UK) LTD DIV AEROSPACE DIVISION - CLEVEDON (GBR)
SPECIFICATIONS
diameter3.000 INCHES NOMINAL IN
materialALUMINUM
head_styleFLAT
oil_grooveNOT INCLUDED
skirt_typeSEMISPLIT
carbon_grooveINCLUDED
overall_height2.906 INCHES NOMINAL IN
surface_finishFINISHED
pin_hole_bushingNOT INCLUDED
pinhole_diameter0.7492 INCHES MINIMUM AND 0.7496 INCHES MAXIMUM IN
ring_groove_width0.1560 INCHES MINIMUM AND 0.1570 INCHES MAXIMUM THIRD RING IN
surface_treatmentTIN
NSN3120-00-409-0685
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 1837P · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
1837PInterchangeable
interchangeable cross-reference
interchangeable
A1017PInterchangeable
interchangeable cross-reference
interchangeable
L2005FInterchangeable
interchangeable cross-reference
interchangeable
11-4104PInterchangeable
Same NIIN cross-reference
interchangeable
99-6040474Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1837P?
1837P is a PISTON,INTERNAL COMBUSTION ENGIN.
What parts can replace 1837P?
There are 5 known substitutes for 1837P: 1837P, A1017P, L2005F and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1837P?
1837P is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-409-0685. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026