PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A306514Bearing,ball,annular

Northrop Grumman Systems Corporation · NSN 3110-00-278-6982 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-278-6982 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-278-6982. Primary manufacturer part number: A306514.
Features
  • Bearing,ball,annular — FSC 3110
  • Seal Quantity: 1
  • Bearing Seal Type: CONTACT
  • Bore Diameter: 17.00 MILLIMETERS NOMINAL MM
  • Load Direction: RADIAL
  • Material: STEEL RETAINER
  • Material: STEEL BALL
  • Material: STEEL INNER RING
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Retainer construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-278-6982, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-278-6982
Primary Part NumberA306514
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Seal Quantity1
Bearing Seal TypeCONTACT
Bore Diameter17.00 MILLIMETERS NOMINAL MM
Load DirectionRADIAL
MaterialSTEEL RETAINER
MaterialSTEEL BALL
MaterialSTEEL INNER RING
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL OUTER RING
MaterialRUBBER SYNTHETIC SEAL
Surface FinishGROUND
Standard Tolerance DesignationABEC NO.1
Retainer Fabrication MethodPRESSED
Internal Fit-Up DesignationLOOSE
Overall Outside Diameter40.00 MILLIMETERS NOMINAL MM
Bore ShapeSTRAIGHT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-100-23631203L-1B1 INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
4810-00-590-896099716 INTERCHANGEABLE
Seat,valve
Hamilton Sundstrand Corporation Dba Collins Aerospace
Cross-Reference Index
Part NumberManufacturer
6203ARSC3HT2 Skf Usa Inc. (USA)
A306514 PRIMARY Northrop Grumman Systems Corporation (USA)
405850-44A Reliance Electric (USA)
P203PFS50000 Timken Co Div the Timken Company (USA)
99716 Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA)
405850-44A Reliance Electric Company Dba Reliance & Dodge Brands (USA)
Z9503L1C General Motors Corp Delco Moraine Ndh Div (USA)
S1818 The Gorman-Rupp Company Div Gorman-Rupp (USA)
6203RSJC3 Skf Usa Inc. (USA)
Related Parts
3110-00-100-2363INTERCHANGEABLE
BEARING,BALL,ANNULAR
1203L-1B1
4810-00-590-8960INTERCHANGEABLE
SEAT,VALVE
99716

Frequently Asked Questions

What is NSN 3110-00-278-6982?

NSN 3110-00-278-6982 is a Bearing,ball,annular, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-278-6982?

NSN 3110-00-278-6982 has 9 cross-referenced part numbers: 6203ARSC3HT2 (Skf Usa Inc.), A306514 (Northrop Grumman Systems Corporation), 405850-44A (Reliance Electric), P203PFS50000 (Timken Co Div the Timken Company), 99716 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics) and 4 more.

What NSN replaces 3110-00-278-6982?

There are 2 known substitutes for 3110-00-278-6982: 3110-00-100-2363, 4810-00-590-8960. Verify interchangeability with system specifications before substitution.

What are the specifications of A306514?

Key specifications for A306514: Seal Quantity: 1; Bearing Seal Type: CONTACT; Bore Diameter: 17.00 MILLIMETERS NOMINAL MM; Load Direction: RADIAL. 17 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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