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2123128 — PLATE,RETAINING,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

2123128: PLATE,RETAINING,BEARING.

The PLATE,RETAINING,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OVERALL, body_diameter: 1.375 INCHES NOMINAL IN, body_thickness: 0.125 INCHES NOMINAL IN, minor_thickness: 0.281 INCHES NOMINAL IN, outside_diameter: 2.437 INCHES NOMINAL IN, special_features: TWO ADDITONAL HOLES ON 1.875 IN. DIA BOLT CIRCLE 0.1562 IN.

DIA; 63.0 MICROIN FINISH ON CBORE DIA IN. This part is cataloged in the U.S. Government catalog under NSN 3110-01-319-7377, 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
2123128
NSN: 3110-01-319-7377
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OVERALL
body_diameter1.375 INCHES NOMINAL IN
body_thickness0.125 INCHES NOMINAL IN
minor_thickness0.281 INCHES NOMINAL IN
outside_diameter2.437 INCHES NOMINAL IN
special_featuresTWO ADDITONAL HOLES ON 1.875 IN. DIA BOLT CIRCLE 0.1562 IN. DIA; 63.0 MICROIN FINISH ON CBORE DIA IN
style_designatorROUND
aperture_diameter0.968 INCHES NOMINAL IN
counterbore_depth0.094 INCHES NOMINAL IN
overall_thickness0.406 INCHES NOMINAL IN
surface_treatmentPHOSPHATE MANGANESE OVERALL
mounting_hole_typeROUND, UNTHREADED, COUNTERBORED
NSN3110-01-319-7377
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 2123128 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BODY DIAMETER: 1.375 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: DOD-P-16232,TYPE M,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MINOR THICKNESS: 0.281 INCHES NOMINAL IN
•
BOLT CIRCLE HOLE QUANTITY: 3
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED, COUNTERBORED
•
COUNTERBORE DIAMETER: 1.1251 INCHES MINIMUM AND 1.1254 INCHES MAXIMUM IN
•
COUNTERBORE DEPTH: 0.094 INCHES NOMINAL IN
•
MOUNTING HOLE ARRANGEMENT STYLE: SINGLE BOLT HOLE CIRCLE
TECHNICAL CHARACTERISTICS
BODY DIAMETER1.375 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDOD-P-16232,TYPE M,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MINOR THICKNESS0.281 INCHES NOMINAL IN
BOLT CIRCLE HOLE QUANTITY3
MOUNTING HOLE TYPEROUND, UNTHREADED, COUNTERBORED
COUNTERBORE DIAMETER1.1251 INCHES MINIMUM AND 1.1254 INCHES MAXIMUM IN
COUNTERBORE DEPTH0.094 INCHES NOMINAL IN
MOUNTING HOLE ARRANGEMENT STYLESINGLE BOLT HOLE CIRCLE
OVERALL THICKNESS0.406 INCHES NOMINAL IN
STYLE DESIGNATORROUND
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2123128?
2123128 is a PLATE,RETAINING,BEARING.
What is the NSN for 2123128?
2123128 is cataloged in the U.S. Government catalog under NSN 3110-01-319-7377. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.