PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18052Bearing,ball,duplex

Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings · NSN 3110-01-408-5894 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-408-5894 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-408-5894. Primary manufacturer part number: 18052.
Features
  • Bearing,ball,duplex — FSC 3110
  • Material: STEEL BALL
  • Bore Diameter: 4.2498 INCHES NOMINAL IN
  • Contact Angle: 30.0 DEGREES NOMINAL
  • Material: ALUMINUM ALLOY 6061 SPACER
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE, BACK TO BACK MOUNTING
  • Material: STEEL COMP E52100 OUTER RACE
  • Material: OIL LUBRICATION
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Ball construction
General Description

The Bearing,ball,duplex, cataloged under National Stock Number 3110-01-408-5894, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-01-408-5894
Primary Part Number18052
Item NameBearing,ball,duplex
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerIndustrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings
StatusACTIVE
MaterialSTEEL BALL
Bore Diameter4.2498 INCHES NOMINAL IN
Contact Angle30.0 DEGREES NOMINAL
MaterialALUMINUM ALLOY 6061 SPACER
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE, BACK TO BACK MOUNTING
MaterialSTEEL COMP E52100 OUTER RACE
MaterialOIL LUBRICATION
MaterialSTEEL COMP E52100 INNER RACE
MaterialPLASTIC POLYTETRAFLUOROETHYLENE SEPARATOR
Overall Outside Diameter5.0003 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5133-00-189-9297 INTERCHANGEABLE
Drill,twist
4730-00-221-2137AS4863SIZE02 MOD INTERCHANGEABLE
Plug,pipe
Sae International Dba Sae International
6210-00-299-4950 INTERCHANGEABLE
Light,indicator
2805-00-333-4330 INTERCHANGEABLE
Baffle,airflow,nonaircraft Recip
3040-00-365-587842363-1 INTERCHANGEABLE
Shaft,shouldered
Cummins Inc.
5950-00-577-3062 INTERCHANGEABLE
Transformer,audio Frequency
5305-00-589-4354 INTERCHANGEABLE
Screw Assembly
9540-00-805-6445 INTERCHANGEABLE
Structural Section,special Shape
5330-01-012-2477 INTERCHANGEABLE
Seal,plain Encased
4520-01-042-305418052 INTERCHANGEABLE
Ring Dam and Fitting Assembly
Hdt Expeditionary Systems Inc
Cross-Reference Index
Part NumberManufacturer
42363-1 Fisica Applied Technologies, Inc. Div Datron Advanced Technologies (USA)
18052 PRIMARY Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings (USA)
42363-1 Datron Systems Inc (USA)
42363-1 Kaydon Corp Plant 2 (USA)
Related Parts
5133-00-189-9297INTERCHANGEABLE
DRILL,TWIST
4730-00-221-2137INTERCHANGEABLE
PLUG,PIPE
AS4863SIZE02 MOD
6210-00-299-4950INTERCHANGEABLE
LIGHT,INDICATOR
2805-00-333-4330INTERCHANGEABLE
BAFFLE,AIRFLOW,NONAIRCRAFT RECIP
3040-00-365-5878INTERCHANGEABLE
SHAFT,SHOULDERED
42363-1
5950-00-577-3062INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5305-00-589-4354INTERCHANGEABLE
SCREW ASSEMBLY
9540-00-805-6445INTERCHANGEABLE
STRUCTURAL SECTION,SPECIAL SHAPE
5330-01-012-2477INTERCHANGEABLE
SEAL,PLAIN ENCASED
4520-01-042-3054INTERCHANGEABLE
RING DAM AND FITTING ASSEMBLY
18052
1270-01-149-5954INTERCHANGEABLE
ROLLER,TENSION
11780263
5930-01-180-8216INTERCHANGEABLE
SWITCH,TOGGLE
CA201-73

Frequently Asked Questions

What is NSN 3110-01-408-5894?

NSN 3110-01-408-5894 is a Bearing,ball,duplex, manufactured by Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-408-5894?

NSN 3110-01-408-5894 has 4 cross-referenced part numbers: 42363-1 (Fisica Applied Technologies, Inc. Div Datron Advanced Technologies), 18052 (Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings), 42363-1 (Datron Systems Inc), 42363-1 (Kaydon Corp Plant 2).

What NSN replaces 3110-01-408-5894?

There are 12 known substitutes for 3110-01-408-5894: 5133-00-189-9297, 4730-00-221-2137, 6210-00-299-4950 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18052?

Key specifications for 18052: Material: STEEL BALL; Bore Diameter: 4.2498 INCHES NOMINAL IN; Contact Angle: 30.0 DEGREES NOMINAL; Material: ALUMINUM ALLOY 6061 SPACER. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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