PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H44Bearing,ball,annular

Timken Aerospace, Inc Dba Torrington Product · NSN 3110-00-155-9003 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-155-9003 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-155-9003. Primary manufacturer part number: H44.
Features
  • Bearing,ball,annular — FSC 3110
  • Bore Diameter: 5.5000 INCHES NOMINAL IN
  • Surface Finish: GROUND
  • Load Direction: RADIAL
  • Internal Fit-Up Designation: STANDARD
  • Standard Tolerance Designation: ABEC NO.1
  • Lubrication Material: LUBRICANT
  • Bore Shape: STRAIGHT
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-155-9003, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Timken Aerospace, Inc Dba Torrington Product. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN3110-00-155-9003
Primary Part NumberH44
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Aerospace, Inc Dba Torrington Product
StatusACTIVE
Bore Diameter5.5000 INCHES NOMINAL IN
Surface FinishGROUND
Load DirectionRADIAL
Internal Fit-Up DesignationSTANDARD
Standard Tolerance DesignationABEC NO.1
Lubrication MaterialLUBRICANT
Bore ShapeSTRAIGHT
Overall Outside Diameter9.5000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4320-00-218-4346H44 INTERCHANGEABLE
Ring,lantern
Circor Naval Solutions Llc Dba Warren Pumps
6145-00-238-3409 INTERCHANGEABLE
Wire,electrical
3455-00-567-1370 INTERCHANGEABLE
File,rotary
5310-00-945-05382556-1 INTERCHANGEABLE
Nut,plain,square
Raytheon Company Dba Raytheon
5999-00-976-5713H44 INTERCHANGEABLE
Heater,thermal Release
Siemens Energy and Automation Inc Siemens Furnas Controls Div
5961-01-068-8246U3003327-01 INTERCHANGEABLE
Rectifier,semiconductor Device
New Bedford Panoramex Corp. Dba New Bedford Panoramex Corp
4730-01-273-3672HF44SS INTERCHANGEABLE
Clamp,hose
Murray Corporation
Cross-Reference Index
Part NumberManufacturer
H44 PRIMARY Timken Aerospace, Inc Dba Torrington Product (USA)
LS23 1-2 Equitable Bearing Co Inc (USA)
88BIC02 PRIMARY Timken Co Div the Timken Company (USA)
88BIC02 Timken Aerospace, Inc Dba Torrington Product (USA)
LS23 1-2 PRIMARY Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
Related Parts
4320-00-218-4346INTERCHANGEABLE
RING,LANTERN
H44
6145-00-238-3409INTERCHANGEABLE
WIRE,ELECTRICAL
3455-00-567-1370INTERCHANGEABLE
FILE,ROTARY
5310-00-945-0538INTERCHANGEABLE
NUT,PLAIN,SQUARE
2556-1
5999-00-976-5713INTERCHANGEABLE
HEATER,THERMAL RELEASE
H44
5961-01-068-8246INTERCHANGEABLE
RECTIFIER,SEMICONDUCTOR DEVICE
U3003327-01
4730-01-273-3672INTERCHANGEABLE
CLAMP,HOSE
HF44SS

Frequently Asked Questions

What is NSN 3110-00-155-9003?

NSN 3110-00-155-9003 is a Bearing,ball,annular, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-155-9003?

NSN 3110-00-155-9003 has 5 cross-referenced part numbers: H44 (Timken Aerospace, Inc Dba Torrington Product), LS23 1-2 (Equitable Bearing Co Inc), 88BIC02 (Timken Co Div the Timken Company), 88BIC02 (Timken Aerospace, Inc Dba Torrington Product), LS23 1-2 (Schatz Bearing Corporation Dba Schatz Bearing Corp).

What NSN replaces 3110-00-155-9003?

There are 7 known substitutes for 3110-00-155-9003: 4320-00-218-4346, 6145-00-238-3409, 3455-00-567-1370 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H44?

Key specifications for H44: Bore Diameter: 5.5000 INCHES NOMINAL IN; Surface Finish: GROUND; Load Direction: RADIAL; Internal Fit-Up Designation: STANDARD. 9 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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