PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30-31561Bearing,ball,annular

Brunswick Corp Dba Mercury Marine Div Mercury Marine · NSN 3110-00-838-6825 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-838-6825 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-838-6825. Primary manufacturer part number: 30-31561.
Features
  • Bearing,ball,annular — FSC 3110
  • Bore Diameter: 30.00 MILLIMETERS NOMINAL MM
  • Standard Tolerance Designation: ABEC NO.1
  • Seal Quantity: 2
  • Surface Finish: GROUND
  • Bearing Seal Type: CONTACT
  • Lubrication Material: GREASE
  • Bore Shape: STRAIGHT
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 3110-00-838-6825, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Brunswick Corp Dba Mercury Marine Div Mercury Marine. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-838-6825
Primary Part Number30-31561
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerBrunswick Corp Dba Mercury Marine Div Mercury Marine
StatusACTIVE
Bore Diameter30.00 MILLIMETERS NOMINAL MM
Standard Tolerance DesignationABEC NO.1
Seal Quantity2
Surface FinishGROUND
Bearing Seal TypeCONTACT
Lubrication MaterialGREASE
Bore ShapeSTRAIGHT
Lubrication Material Document and ClassificationALVANIA 3,FSCM 54527 MFR REF SINGLE MATERIAL RESPONSE
Internal Fit-Up DesignationSTANDARD
Load DirectionRADIAL
MaterialSTEEL INNER RING
MaterialSTEEL RETAINER
MaterialSTEEL BALL
Overall Outside Diameter62.00 MILLIMETERS NOMINAL MM
MaterialRUBBER SYNTHETIC SEAL
MaterialSTEEL OUTER RING
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5920-00-977-93551085AS766 INTERCHANGEABLE
Fuseholder,extractor Post
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
30-31561 PRIMARY Brunswick Corp Dba Mercury Marine Div Mercury Marine (USA)
Z99506XR1Z General Motors Corp Delco Moraine Ndh Div (USA)
Related Parts
5920-00-977-9355INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
1085AS766

Frequently Asked Questions

What is NSN 3110-00-838-6825?

NSN 3110-00-838-6825 is a Bearing,ball,annular, manufactured by Brunswick Corp Dba Mercury Marine Div Mercury Marine, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-838-6825?

NSN 3110-00-838-6825 has 2 cross-referenced part numbers: 30-31561 (Brunswick Corp Dba Mercury Marine Div Mercury Marine), Z99506XR1Z (General Motors Corp Delco Moraine Ndh Div).

What NSN replaces 3110-00-838-6825?

There is 1 known substitute for 3110-00-838-6825: 5920-00-977-9355. Verify interchangeability with system specifications before substitution.

What are the specifications of 30-31561?

Key specifications for 30-31561: Bore Diameter: 30.00 MILLIMETERS NOMINAL MM; Standard Tolerance Designation: ABEC NO.1; Seal Quantity: 2; Surface Finish: GROUND. 18 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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