PartsTable
Technical Data Sheet
DU12 ✓ 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

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include diameter: 0.8750 INCHES MINIMUM AND 0.8850 INCHES MAXIMUM IN, material: STEEL INNER LAYER, gear_type: SPUR, design_type: SINGLE REDUCTION, total_ratio: 20.19 TO 1, corner_shape: SQUARE ALL CORNERS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-061-5502, 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
DU12
NSN: 3120-00-061-5502
FSC: 3120
CAGE: 28499 — CHEMLEC PRODUCTS INC (USA)
SPECIFICATIONS
diameter0.8750 INCHES MINIMUM AND 0.8850 INCHES MAXIMUM IN
materialSTEEL INNER LAYER
gear_typeSPUR
design_typeSINGLE REDUCTION
total_ratio20.19 TO 1
corner_shapeSQUARE ALL CORNERS
overall_width5.312 INCHES MAXIMUM IN
inclosure_typeOPEN
overall_height5.250 INCHES MAXIMUM IN
overall_length5.312 INCHES MAXIMUM IN
mounting_methodFLANGE AND SLOT SINGLE GROUP
frequency_rating50.0 HERTZ MINIMUM AND 500.0 HERTZ MAXIMUM SINGLE COMPONENT
NSN3120-00-061-5502
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: DU12 · 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
OVERALL THICKNESS: 0.0620 INCHES NOMINAL IN
BEARING SURFACE HOLE QUANTITY: 1 FIRST
MATERIAL: STEEL INNER LAYER
CORNER SHAPE: SQUARE ALL CORNERS
OUTSIDE DIAMETER: 1.4950 INCHES NOMINAL IN
STYLE DESIGNATOR: ROUND
DIAMETER: 0.8900 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL THICKNESS0.0620 INCHES NOMINAL IN
BEARING SURFACE HOLE QUANTITY1 FIRST
MATERIALSTEEL INNER LAYER
MATERIALCOPPER ALLOY AND PLASTIC POLYTETRAFLUOROETHYLENE OUTER LAYER
CORNER SHAPESQUARE ALL CORNERS
OUTSIDE DIAMETER1.4950 INCHES NOMINAL IN
STYLE DESIGNATORROUND
DIAMETER0.8900 INCHES NOMINAL IN
LUBRICATION FEATUREPERFORATION FLAT BEARING SURFACE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
DU-1/2Interchangeable
interchangeable cross-reference
interchangeable
DU12Interchangeable
interchangeable cross-reference
interchangeable
RX10-2Interchangeable
interchangeable cross-reference
interchangeable
U1-2Interchangeable
interchangeable cross-reference
interchangeable
K74001-001Interchangeable
interchangeable cross-reference
interchangeable
78-8016-8420-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DU12?
DU12 is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace DU12?
There are 7 known substitutes for DU12: DU-1/2, DU12, RX10-2 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DU12?
DU12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-061-5502. This indicates validated use in U.S. government and defense supply chains.
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