PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6311ZNRJBearing,ball,annular

Skf Usa Inc. · NSN 3110-00-155-6281 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-155-6281 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-155-6281. Primary manufacturer part number: 6311ZNRJ.
Features
  • Bearing,ball,annular — FSC 3110
  • Surface Finish: GROUND
  • Standard Tolerance Designation: ABEC NO.1
  • Material: STEEL SHIELD
  • Material: STEEL BALL
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Material: STEEL INNER RING
  • Material: STEEL OUTER RING
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Shield construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-155-6281, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Skf Usa Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-155-6281
Primary Part Number6311ZNRJ
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSkf Usa Inc.
StatusACTIVE
Surface FinishGROUND
Standard Tolerance DesignationABEC NO.1
MaterialSTEEL SHIELD
MaterialSTEEL BALL
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL INNER RING
MaterialSTEEL OUTER RING
Bore ShapeSTRAIGHT
Shield Quantity1
Bore Diameter55.00 MILLIMETERS NOMINAL MM
Internal Fit-Up DesignationSTANDARD
Load DirectionRADIAL
Overall Outside Diameter120.00 MILLIMETERS NOMINAL MM
Features ProvidedSNAP RING-GROOVE MOUNTING AND MOUNTING GROOVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-155-67631311MGF INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
2930-00-408-9423 INTERCHANGEABLE
Cooler,oil
3110-00-554-3449 INTERCHANGEABLE
Bearing,ball,annular
5895-00-590-8476 INTERCHANGEABLE
Indicator,azimuth
5325-00-622-37221507787 INTERCHANGEABLE
Ring,retaining
Chrysler Realty Company Llc Dba Daimler Chrysler
5845-00-757-773147611 INTERCHANGEABLE
Standard Sweep Circ
L3harris Technologies, Inc. Div Space and Airborne Systems
6150-01-211-45024054347 INTERCHANGEABLE
Lead,electrical
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Cross-Reference Index
Part NumberManufacturer
6311ZNRJ PRIMARY Skf Usa Inc. (USA)
147-311-2 PRIMARY Napco International Llc Dba Napco International Inc (USA)
311KDG PRIMARY Timken Co Div the Timken Company (USA)
147-311-2 PRIMARY Dana Corp Spicer Transmission Div (USA)
954181 PRIMARY General Motors Corp (USA)
47611 General Motors Llc Dba General Motors Llc (USA)
311FG Mcgill Manufacturing Company Inc Use CAGE Code 92563 for Cataloging. (USA)
311FG PRIMARY Mcgill Manufacturing Co, Inc (USA)
55BC03PG Safran Power Usa Llc (USA)
6311ZNR PRIMARY Naval Ship Systems Command (USA)
55BC03PG Lucas Aerospace Power Equipment Corporation (USA)
4311P PRIMARY Fag Bearings Corporation (USA)
47611 General Motors Corp Delco Moraine Ndh Div (USA)
6311ZNR PRIMARY Skf Usa Inc. (USA)
6311ZNRCE1TX9 PRIMARY Nsk Corp Bearing Div (USA)
47611 General Motors Corp (USA)
Related Parts
3110-00-155-6763INTERCHANGEABLE
BEARING,BALL,ANNULAR
1311MGF
2930-00-408-9423INTERCHANGEABLE
COOLER,OIL
3110-00-554-3449INTERCHANGEABLE
BEARING,BALL,ANNULAR
5895-00-590-8476INTERCHANGEABLE
INDICATOR,AZIMUTH
5325-00-622-3722INTERCHANGEABLE
RING,RETAINING
1507787
5845-00-757-7731INTERCHANGEABLE
STANDARD SWEEP CIRC
47611
6150-01-211-4502INTERCHANGEABLE
LEAD,ELECTRICAL
4054347

Frequently Asked Questions

What is NSN 3110-00-155-6281?

NSN 3110-00-155-6281 is a Bearing,ball,annular, manufactured by Skf Usa Inc., classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-155-6281?

NSN 3110-00-155-6281 has 16 cross-referenced part numbers: 6311ZNRJ (Skf Usa Inc.), 147-311-2 (Napco International Llc Dba Napco International Inc), 311KDG (Timken Co Div the Timken Company), 147-311-2 (Dana Corp Spicer Transmission Div), 954181 (General Motors Corp) and 11 more.

What NSN replaces 3110-00-155-6281?

There are 7 known substitutes for 3110-00-155-6281: 3110-00-155-6763, 2930-00-408-9423, 3110-00-554-3449 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6311ZNRJ?

Key specifications for 6311ZNRJ: Surface Finish: GROUND; Overall Width: 29.0 MILLIMETERS NOMINAL MM; Standard Tolerance Designation: ABEC NO.1; Material: STEEL SHIELD. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com