PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7309DF3TX9Bearing,ball,duplex

Nsk Corp Bearing Div · NSN 3110-00-157-2071 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-157-2071 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-157-2071. Primary manufacturer part number: 7309DF3TX9.
Features
  • Bearing,ball,duplex — FSC 3110
  • Material: STEEL OVERALL
  • Standard Tolerance Designation: ABEC NO.3
  • Load Direction: ANGULAR
  • Bore Diameter: 45.00 MILLIMETERS NOMINAL MM
  • Standard Tolerance Designation: ABEC NO.3
  • Bearing Preload Designation: LIGHT
  • Style Designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,duplex, cataloged under National Stock Number 3110-00-157-2071, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Nsk Corp Bearing Div. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-157-2071
Primary Part Number7309DF3TX9
Item NameBearing,ball,duplex
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerNsk Corp Bearing Div
StatusCANCELLED
MaterialSTEEL OVERALL
Standard Tolerance DesignationABEC NO.3
Load DirectionANGULAR
Bore Diameter45.00 MILLIMETERS NOMINAL MM
Standard Tolerance DesignationABEC NO.3
Bearing Preload DesignationLIGHT
Style DesignatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
Overall Outside Diameter100.00 MILLIMETERS NOMINAL MM
MaterialSTEEL OVERALL
Load DirectionANGULAR
Bearing Preload DesignationLIGHT
Surface FinishGROUND
Style DesignatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
Retainer Fabrication MethodPRESSED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3110-00-156-684416X730 INTERCHANGEABLE
Bearing,ball,annular
Garwood/feller Inc Garwood Winch Div
Cross-Reference Index
Part NumberManufacturer
SG2570PC64 Circor Pumps North America Llc (USA)
SG2572PC64 Circor Pumps North America Llc (USA)
SG2501PC64 Circor Pumps North America Llc (USA)
7309DF Skf Usa Inc. (USA)
H20309DFL3 General Motors Corp Delco Moraine Ndh Div (USA)
H20309DFLIA Siemens Energy, Inc. (USA)
7309DF3TX9 PRIMARY Nsk Corp Bearing Div (USA)
H20309 PRIMARY Siemens Energy, Inc. (USA)
SG2501PC64 Siemens Energy, Inc. (USA)
H20309DFL3A General Motors Corp Delco Moraine Ndh Div (USA)
H20309DFL3A General Motors Corp (USA)
402294-77 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
SG2572PC64 Siemens Energy, Inc. (USA)
SG2570PC64 Siemens Energy, Inc. (USA)
H20309DFL33A PRIMARY Siemens Energy, Inc. (USA)
H20309DFL3 General Motors Corp (USA)
Related Parts
3110-00-156-6844INTERCHANGEABLE
BEARING,BALL,ANNULAR
16X730

Frequently Asked Questions

What is NSN 3110-00-157-2071?

NSN 3110-00-157-2071 is a Bearing,ball,duplex, manufactured by Nsk Corp Bearing Div, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-157-2071?

NSN 3110-00-157-2071 has 16 cross-referenced part numbers: SG2570PC64 (Circor Pumps North America Llc), SG2572PC64 (Circor Pumps North America Llc), SG2501PC64 (Circor Pumps North America Llc), 7309DF (Skf Usa Inc.), H20309DFL3 (General Motors Corp Delco Moraine Ndh Div) and 11 more.

What NSN replaces 3110-00-157-2071?

There is 1 known substitute for 3110-00-157-2071: 3110-00-156-6844. Verify interchangeability with system specifications before substitution.

What are the specifications of 7309DF3TX9?

Key specifications for 7309DF3TX9: Overall Width: 50.0 MILLIMETERS NOMINAL MM; Material: STEEL OVERALL; Standard Tolerance Designation: ABEC NO.3; Load Direction: ANGULAR. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-157-2071 still in active supply?

NSN 3110-00-157-2071 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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