PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

519397Bearing,ball,annular

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 3110-00-914-3270 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-914-3270 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-914-3270. Primary manufacturer part number: 519397.
Features
  • Bearing,ball,annular — FSC 3110
  • Material Document and Classification: AMS 6440 ASSN STD SINGLE MATERIAL RESPONSE INNER RING
  • Material: STEEL COMP E51100 BALL
  • Material: STEEL COMP 4340 RETAINER
  • Material Document and Classification: AMS 6414 ASSN STD SINGLE MATERIAL RESPONSE RETAINER
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE BALL
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Material: STEEL COMP E52100 OUTER RING
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E51100 Ball construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-914-3270, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-914-3270
Primary Part Number519397
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusCANCELLED
Material Document and ClassificationAMS 6440 ASSN STD SINGLE MATERIAL RESPONSE INNER RING
MaterialSTEEL COMP E51100 BALL
MaterialSTEEL COMP 4340 RETAINER
Material Document and ClassificationAMS 6414 ASSN STD SINGLE MATERIAL RESPONSE RETAINER
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE BALL
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL COMP E52100 OUTER RING
Surface FinishGROUND
Bore ShapeSTRAIGHT
Retainer Fabrication MethodMACHINED
Bore Diameter1.1809 INCHES MINIMUM AND 1.1811 INCHES MAXIMUM IN
Standard Tolerance DesignationABEC NO.5
MaterialSTEEL COMP E52100 INNER RING
Material Document and ClassificationAAMS 6440 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING
Load DirectionRADIAL
Overall Outside Diameter2.4406 INCHES MINIMUM AND 2.4409 INCHES MAXIMUM IN
Internal Clearance0.0006 INCHES MINIMUM RADIAL AND 0.0010 INCHES MAXIMUM RADIAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5330-00-589-0535 INTERCHANGEABLE
Seal,plain
6680-00-844-4806 INTERCHANGEABLE
Meter,volumetric Positive Displa
Cross-Reference Index
Part NumberManufacturer
519399 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
519397 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
519399 Skf Usa Inc. (USA)
519398 Skf Usa Inc. (USA)
519398 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
519398 Rtx Corporation Div Pratt & Whitney (USA)
2197927 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5330-00-589-0535INTERCHANGEABLE
SEAL,PLAIN
6680-00-844-4806INTERCHANGEABLE
METER,VOLUMETRIC POSITIVE DISPLA

Frequently Asked Questions

What is NSN 3110-00-914-3270?

NSN 3110-00-914-3270 is a Bearing,ball,annular, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-914-3270?

NSN 3110-00-914-3270 has 7 cross-referenced part numbers: 519399 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 519397 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 519399 (Skf Usa Inc.), 519398 (Skf Usa Inc.), 519398 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 2 more.

What NSN replaces 3110-00-914-3270?

There are 2 known substitutes for 3110-00-914-3270: 5330-00-589-0535, 6680-00-844-4806. Verify interchangeability with system specifications before substitution.

What are the specifications of 519397?

Key specifications for 519397: Material Document and Classification: AMS 6440 ASSN STD SINGLE MATERIAL RESPONSE INNER RING; Material: STEEL COMP E51100 BALL; Material: STEEL COMP 4340 RETAINER; Material Document and Classification: AMS 6414 ASSN STD SINGLE MATERIAL RESPONSE RETAINER. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-914-3270 still in active supply?

NSN 3110-00-914-3270 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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