PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55259Bearing,ball,thrust

Hamilton Sundstrand Corporation · NSN 3110-00-554-5791 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-554-5791 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-554-5791. Primary manufacturer part number: 55259.
Features
  • Bearing,ball,thrust — FSC 3110
  • Alignment Type: RIGID
  • Thrust Directional Capability Designation: SINGLE
  • Retainer Fabrication Method: MACHINED
  • Surface Finish: GROUND
  • Bore Smallest Diameter: 0.2520 INCHES MINIMUM AND 0.2570 INCHES MAXIMUM IN
  • Overall Outside Diameter: 0.5575 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN
  • Style Designator: FLAT RACE SURFACE, IN LINE BALL RETAINER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Washer construction
General Description

The Bearing,ball,thrust, cataloged under National Stock Number 3110-00-554-5791, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Hamilton Sundstrand Corporation. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-554-5791
Primary Part Number55259
Item NameBearing,ball,thrust
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation
StatusCANCELLED
Alignment TypeRIGID
Thrust Directional Capability DesignationSINGLE
Retainer Fabrication MethodMACHINED
Surface FinishGROUND
Bore Smallest Diameter0.2520 INCHES MINIMUM AND 0.2570 INCHES MAXIMUM IN
Overall Outside Diameter0.5575 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN
Style DesignatorFLAT RACE SURFACE, IN LINE BALL RETAINER
MaterialSTEEL WASHER
MaterialSTEEL BALL
MaterialCOPPER ALLOY RETAINER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6240-00-060-2941683 INTERCHANGEABLE
Lamp,incandescent
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
5920-00-240-3473A05 INTERCHANGEABLE
Adapter,fuse
Cooper Bussmann, Llc Dba Cooper Industries
5945-00-409-8993A05 INTERCHANGEABLE
Relay,electromagnetic
Pennine Components Ltd
3040-00-495-9499A10269 INTERCHANGEABLE
Lever,remote Control
Am General Llc
5330-00-593-663055259 INTERCHANGEABLE
Seal,plain
Federal-Mogul Corp Government Sales Dept
4330-00-610-036855259 INTERCHANGEABLE
Filtering Disk,fluid
Ellis & Watts International, Llc
5950-00-626-4799SMC209366-5 INTERCHANGEABLE
Transformer,pulse
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5975-00-674-796955259 INTERCHANGEABLE
Hanger,cable
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
4820-00-845-1096 INTERCHANGEABLE
Cock,drain
4730-00-922-7889214-1309 INTERCHANGEABLE
Clamp,hose
Cnh Industrial America Llc Dba Cnh America
Cross-Reference Index
Part NumberManufacturer
152A027401 Westinghouse Electric Corp (USA)
A05-L-1 Altra Industrial Motion Corp. (USA)
05-0805 Bacharach, Inc. (USA)
152A027401 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
443-050-1 Pelco, Inc. (USA)
152A027H01 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
FR9 Skf Industries Inc Nice Bearing Products Div (USA)
55259 PRIMARY Hamilton Sundstrand Corporation (USA)
A05 Altra Industrial Motion Corp. (USA)
309-0167-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
6240-00-060-2941INTERCHANGEABLE
LAMP,INCANDESCENT
683
5920-00-240-3473INTERCHANGEABLE
ADAPTER,FUSE
A05
5945-00-409-8993INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
A05
3040-00-495-9499INTERCHANGEABLE
LEVER,REMOTE CONTROL
A10269
5330-00-593-6630INTERCHANGEABLE
SEAL,PLAIN
55259
4330-00-610-0368INTERCHANGEABLE
FILTERING DISK,FLUID
55259
5950-00-626-4799INTERCHANGEABLE
TRANSFORMER,PULSE
SMC209366-5
5975-00-674-7969INTERCHANGEABLE
HANGER,CABLE
55259
4820-00-845-1096INTERCHANGEABLE
COCK,DRAIN
4730-00-922-7889INTERCHANGEABLE
CLAMP,HOSE
214-1309
3455-00-943-7187INTERCHANGEABLE
CUTTER,MILLING,END
15786
7350-01-209-2398INTERCHANGEABLE
DISH,EATING
A05

Frequently Asked Questions

What is NSN 3110-00-554-5791?

NSN 3110-00-554-5791 is a Bearing,ball,thrust, manufactured by Hamilton Sundstrand Corporation, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-554-5791?

NSN 3110-00-554-5791 has 10 cross-referenced part numbers: 152A027401 (Westinghouse Electric Corp), A05-L-1 (Altra Industrial Motion Corp.), 05-0805 (Bacharach, Inc.), 152A027401 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 443-050-1 (Pelco, Inc.) and 5 more.

What NSN replaces 3110-00-554-5791?

There are 12 known substitutes for 3110-00-554-5791: 6240-00-060-2941, 5920-00-240-3473, 5945-00-409-8993 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55259?

Key specifications for 55259: Alignment Type: RIGID; Thrust Directional Capability Designation: SINGLE; Retainer Fabrication Method: MACHINED; Surface Finish: GROUND. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-554-5791 still in active supply?

NSN 3110-00-554-5791 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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