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Technical Data Sheet
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188406PC16 — 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 BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 923 AND COPPER ALLOY 903 OVERALL, corner_shape: SQUARE INSIDE LEFT CORNER, hole_diameter: 0.1250 INCHES NOMINAL FIRST IN, overall_length: 2.4850 INCHES MINIMUM AND 2.5150 INCHES MAXIMUM IN, surface_finish: 125.0 MICROINCHES LEFT END SURFACE OF BODY, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-216-7711, 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
188406PC16
NSN: 3120-00-216-7711
FSC: 3120
CAGE: 0AT62 — SIEMENS ENERGY, INC. DBA DRESSER-RAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY 923 AND COPPER ALLOY 903 OVERALL
corner_shapeSQUARE INSIDE LEFT CORNER
hole_diameter0.1250 INCHES NOMINAL FIRST IN
overall_length2.4850 INCHES MINIMUM AND 2.5150 INCHES MAXIMUM IN
surface_finish125.0 MICROINCHES LEFT END SURFACE OF BODY
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter2.0000 INCHES MINIMUM AND 2.0001 INCHES MAXIMUM IN
body_outside_diameter2.3765 INCHES MINIMUM AND 2.3770 INCHES MAXIMUM IN
lubricant_accommodation_styleGROOVED CIRCULAR
material_document_and_classificationMIL-B-16540,GRADE A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_groove_location_and_quantity1 EXTERNAL AND 2 INTERNAL
antirotation/lubrication_type_and_quantity8 HOLE
NSN3120-00-216-7711
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 188406PC16 · 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
•
SURFACE FINISH: 125.0 MICROINCHES LEFT END SURFACE OF BODY
•
CORNER SHAPE: SQUARE INSIDE LEFT CORNER
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
HOLE DIAMETER: 0.1250 INCHES NOMINAL FIRST IN
•
BODY INSIDE DIAMETER: 2.0000 INCHES MINIMUM AND 2.0001 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY 923 AND COPPER ALLOY 903 OVERALL
•
LUBRICANT ACCOMMODATION STYLE: GROOVED CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISH125.0 MICROINCHES LEFT END SURFACE OF BODY
CORNER SHAPESQUARE INSIDE LEFT CORNER
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
HOLE DIAMETER0.1250 INCHES NOMINAL FIRST IN
SURFACE FINISH32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
BODY INSIDE DIAMETER2.0000 INCHES MINIMUM AND 2.0001 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 923 AND COPPER ALLOY 903 OVERALL
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
OVERALL LENGTH2.4850 INCHES MINIMUM AND 2.5150 INCHES MAXIMUM IN
CORNER SHAPESQUARE INSIDE RIGHT CORNER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
FFS86TYPE1STYLE11Interchangeable
interchangeable cross-reference
interchangeable
12Z51PC247Interchangeable
interchangeable cross-reference
interchangeable
166344PC16Interchangeable
interchangeable cross-reference
interchangeable
185416PC16Interchangeable
Same NIIN cross-reference
interchangeable
185449PC16Interchangeable
Same NIIN cross-reference
interchangeable
166345PC16Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 188406PC16?
188406PC16 is a BEARING,SLEEVE.
What parts can replace 188406PC16?
There are 13 known substitutes for 188406PC16: FFS86TYPE1STYLE11, 12Z51PC247, 166344PC16 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 188406PC16?
188406PC16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-216-7711. 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: August 2026