PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

903203Bearing,roller,tapered

Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer · NSN 3110-01-620-8153 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-620-8153 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-620-8153. Primary manufacturer part number: 903203.
Features
  • Bearing,roller,tapered — FSC 3110
  • Bore Diameter: 35.0 MILLIMETERS NOMINAL MM
  • Overall Outside Diameter: 80.0 MILLIMETERS NOMINAL MM
  • Material: STEEL CORROSION RESISTING OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Bearing,roller,tapered, cataloged under National Stock Number 3110-01-620-8153, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-01-620-8153
Primary Part Number903203
Item NameBearing,roller,tapered
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
StatusACTIVE
Bore Diameter35.0 MILLIMETERS NOMINAL MM
Overall Outside Diameter80.0 MILLIMETERS NOMINAL MM
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-516-5289203TF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
3110-00-884-812726118-26282D INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
5998-01-356-414090320-3 INTERCHANGEABLE
Retainer-Ejector,electrical Card
Hamilton Sundstrand Corporation Dba Collins Aerospace
3110-01-372-778523506244 INTERCHANGEABLE
Ball Assembly
Rolls-Royce Solutions America Inc
3431-01-473-0527903 203 INTERCHANGEABLE
Welding Machine,arc
Miller Electric Mfg. Llc
5998-01-554-1068EM-266-11 INTERCHANGEABLE
Circuit Card Assembly
L3 Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
903203 PRIMARY Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
E-4756 REV E ITEM NO. 24 Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
Related Parts
3110-00-516-5289INTERCHANGEABLE
BEARING,BALL,ANNULAR
203TF
3110-00-884-8127INTERCHANGEABLE
BEARING,ROLLER,TAPERED
26118-26282D
5998-01-356-4140INTERCHANGEABLE
RETAINER-EJECTOR,ELECTRICAL CARD
90320-3
3110-01-372-7785INTERCHANGEABLE
BALL ASSEMBLY
23506244
3431-01-473-0527INTERCHANGEABLE
WELDING MACHINE,ARC
903 203
5998-01-554-1068INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
EM-266-11

Frequently Asked Questions

What is NSN 3110-01-620-8153?

NSN 3110-01-620-8153 is a Bearing,roller,tapered, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-620-8153?

NSN 3110-01-620-8153 has 2 cross-referenced part numbers: 903203 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer), E-4756 REV E ITEM NO. 24 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).

What NSN replaces 3110-01-620-8153?

There are 6 known substitutes for 3110-01-620-8153: 3110-00-516-5289, 3110-00-884-8127, 5998-01-356-4140 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 903203?

Key specifications for 903203: Bore Diameter: 35.0 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: DOUBLE ROW SPHERICAL ROLLER BEARING; Overall Width: 21.0 MILLIMETERS NOMINAL MM; End Item Identification: ROTARY PUMP MODEL BXL2NAFK. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com