PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

288503Bearing,ball,annular

N T N Bearing Corp of America · NSN 3110-00-005-5995 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-005-5995 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-005-5995. Primary manufacturer part number: 288503.
Features
  • Bearing,ball,annular — FSC 3110
  • Outer Ring Width: 0.4724 INCHES NOMINAL IN
  • Surface Finish: GROUND
  • Inner Ring Width: 0.6536 INCHES NOMINAL IN
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Material: STEEL INNER RING
  • Material: RUBBER SEAL
  • Material: STEEL BALL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Inner Ring construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-005-5995, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is N T N Bearing Corp of America. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN3110-00-005-5995
Primary Part Number288503
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerN T N Bearing Corp of America
StatusACTIVE
Outer Ring Width0.4724 INCHES NOMINAL IN
Surface FinishGROUND
Inner Ring Width0.6536 INCHES NOMINAL IN
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL INNER RING
MaterialRUBBER SEAL
MaterialSTEEL BALL
MaterialSTEEL RETAINER
MaterialSTEEL OUTER RING
Bore ShapeSTRAIGHT
Lubrication MaterialGREASE
Lubrication Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
Internal Fit-Up DesignationSTANDARD
Load DirectionRADIAL
Standard Tolerance DesignationABEC NO.1
Overall Outside Diameter1.5748 INCHES NOMINAL IN
Bearing Seal TypeCONTACT
Seal Quantity2
Bore Diameter0.6693 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-156-3502135-0000 INTERCHANGEABLE
Bearing,ball,annular
Empire Generator Corporation
3110-00-236-3557 INTERCHANGEABLE
Bearing,ball,annular
1420-00-461-41844691-1 INTERCHANGEABLE
Actuator,electromechanical,rotar
Precision Defense Services Inc
5306-01-159-656488503 INTERCHANGEABLE
Bolt,machine
Dana Commercial Vehicle Products, Llc
4720-01-594-1817288503 INTERCHANGEABLE
Hose,radiator,spec
Hobart Ground Power
6110-01-689-078688503 INTERCHANGEABLE
Controller,motor
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
288503 PRIMARY N T N Bearing Corp of America (USA)
46911 W.w. Grainger, Inc. Div Government Sales Division (USA)
88503 N T N Bearing Corp of America (USA)
Related Parts
3110-00-156-3502INTERCHANGEABLE
BEARING,BALL,ANNULAR
135-0000
3110-00-236-3557INTERCHANGEABLE
BEARING,BALL,ANNULAR
1420-00-461-4184INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
4691-1
5306-01-159-6564INTERCHANGEABLE
BOLT,MACHINE
88503
4720-01-594-1817INTERCHANGEABLE
HOSE,RADIATOR,SPEC
288503
6110-01-689-0786INTERCHANGEABLE
CONTROLLER,MOTOR
88503

Frequently Asked Questions

What is NSN 3110-00-005-5995?

NSN 3110-00-005-5995 is a Bearing,ball,annular, manufactured by N T N Bearing Corp of America, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-005-5995?

NSN 3110-00-005-5995 has 3 cross-referenced part numbers: 288503 (N T N Bearing Corp of America), 46911 (W.w. Grainger, Inc. Div Government Sales Division), 88503 (N T N Bearing Corp of America).

What NSN replaces 3110-00-005-5995?

There are 6 known substitutes for 3110-00-005-5995: 3110-00-156-3502, 3110-00-236-3557, 1420-00-461-4184 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 288503?

Key specifications for 288503: Outer Ring Width: 0.4724 INCHES NOMINAL IN; Surface Finish: GROUND; Inner Ring Width: 0.6536 INCHES NOMINAL IN; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE. 19 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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