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Technical Data Sheet
PartsTable / COMPONENT / DR83380PC491B
DR83380PC491B ✓ 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 material: COPPER ALLOY 464 OR COPPER ALLOY 485 OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.8440 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.7500 INCHES MINIMUM AND 0.7510 INCHES MAXIMUM IN, body_outside_diameter: 0.9380 INCHES MINIMUM AND 0.9390 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-661-9312, 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
DR83380PC491B
NSN: 3120-00-661-9312
FSC: 3120
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
materialCOPPER ALLOY 464 OR COPPER ALLOY 485 OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.8440 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.7500 INCHES MINIMUM AND 0.7510 INCHES MAXIMUM IN
body_outside_diameter0.9380 INCHES MINIMUM AND 0.9390 INCHES MAXIMUM IN
antirotation/lubrication_type_and_quantity1 HOLE
NSN3120-00-661-9312
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: DR83380PC491B · 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: 0.7500 INCHES MINIMUM AND 0.7510 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 0.9380 INCHES MINIMUM AND 0.9390 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL: COPPER ALLOY 464 OR COPPER ALLOY 485 OVERALL
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 HOLE
•
CORNER SHAPE: SQUARE ALL CORNERS
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.8440 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.7500 INCHES MINIMUM AND 0.7510 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.9380 INCHES MINIMUM AND 0.9390 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIALCOPPER ALLOY 464 OR COPPER ALLOY 485 OVERALL
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE
CORNER SHAPESQUARE ALL CORNERS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
L209FInterchangeable
interchangeable cross-reference
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774PInterchangeable
interchangeable cross-reference
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3831772Interchangeable
interchangeable cross-reference
interchangeable
44779Interchangeable
interchangeable cross-reference
interchangeable
44790Interchangeable
interchangeable cross-reference
interchangeable
SL8479PC17-2Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DR83380PC491B?
DR83380PC491B is a PISTON,INTERNAL COMBUSTION ENGIN.
What parts can replace DR83380PC491B?
There are 13 known substitutes for DR83380PC491B: L209F, 774P, 3831772 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DR83380PC491B?
DR83380PC491B is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-661-9312. 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