PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

202803Bearing,roller,needle

Triumph Thermal Systems - Maryland, Inc. · NSN 3110-01-185-0610 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-185-0610 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-185-0610. Primary manufacturer part number: 202803.
Features
  • Bearing,roller,needle — FSC 3110
  • Overall Outside Diameter: 0.4370 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN
  • Surface Finish: GROUND
  • Material: STEEL OVERALL
  • Bore Diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
  • Specification/standard Data: 01359-202803 MANUFACTURERS SPECIFICATION CONTROL
  • Material Document and Classification: HYNES ALLOY 25,FSCM 60380 MFR REF SINGLE MATERIAL RESPONSE ROLLER
  • Style Designator: NON-SEPARABLE, OPEN END, DRAWN SHELL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,roller,needle, cataloged under National Stock Number 3110-01-185-0610, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Triumph Thermal Systems - Maryland, Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-01-185-0610
Primary Part Number202803
Item NameBearing,roller,needle
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTriumph Thermal Systems - Maryland, Inc.
StatusACTIVE
Overall Outside Diameter0.4370 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN
Surface FinishGROUND
MaterialSTEEL OVERALL
Bore Diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
Specification/standard Data01359-202803 MANUFACTURERS SPECIFICATION CONTROL
Material Document and ClassificationHYNES ALLOY 25,FSCM 60380 MFR REF SINGLE MATERIAL RESPONSE ROLLER
Style DesignatorNON-SEPARABLE, OPEN END, DRAWN SHELL
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
Surface TreatmentNICKEL SHELL
Alignment TypeRIGID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5340-00-045-4689SB-44 INTERCHANGEABLE
Clamp,loop
Voss Industries, Llc
3220-00-204-4923 INTERCHANGEABLE
Surfacer,woodworking
5310-00-802-1988B4-4 INTERCHANGEABLE
Washer,flat
Roller Bearing Co of America, Inc Div Pic Design
3030-00-931-0919 INTERCHANGEABLE
Belts,v,matched Set
3030-00-933-0616B44 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
5340-00-947-0154SSBH62N INTERCHANGEABLE
Plunger,quick Release
Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier
5340-01-325-2154ZP20280-3 INTERCHANGEABLE
Handle,bow
Star Cases Llc Dba Zero Manufacturing
Cross-Reference Index
Part NumberManufacturer
202803 Timken Aerospace, Inc Dba Torrington Product (USA)
202803 PRIMARY Triumph Thermal Systems - Maryland, Inc. (USA)
B-44NY Timken Aerospace, Inc Dba Torrington Product (USA)
B44 Timken Aerospace, Inc Dba Torrington Product (USA)
Related Parts
5340-00-045-4689INTERCHANGEABLE
CLAMP,LOOP
SB-44
3220-00-204-4923INTERCHANGEABLE
SURFACER,WOODWORKING
5310-00-802-1988INTERCHANGEABLE
WASHER,FLAT
B4-4
3030-00-931-0919INTERCHANGEABLE
BELTS,V,MATCHED SET
3030-00-933-0616INTERCHANGEABLE
BELT,V
B44
5340-00-947-0154INTERCHANGEABLE
PLUNGER,QUICK RELEASE
SSBH62N
5340-01-325-2154INTERCHANGEABLE
HANDLE,BOW
ZP20280-3

Frequently Asked Questions

What is NSN 3110-01-185-0610?

NSN 3110-01-185-0610 is a Bearing,roller,needle, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-185-0610?

NSN 3110-01-185-0610 has 4 cross-referenced part numbers: 202803 (Timken Aerospace, Inc Dba Torrington Product), 202803 (Triumph Thermal Systems - Maryland, Inc.), B-44NY (Timken Aerospace, Inc Dba Torrington Product), B44 (Timken Aerospace, Inc Dba Torrington Product).

What NSN replaces 3110-01-185-0610?

There are 7 known substitutes for 3110-01-185-0610: 5340-00-045-4689, 3220-00-204-4923, 5310-00-802-1988 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 202803?

Key specifications for 202803: Overall Outside Diameter: 0.4370 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN; Surface Finish: GROUND; Material: STEEL OVERALL; Bore Diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN. 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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