PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-55602Bearing,roller,cylindrical

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 3110-00-155-7381 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-155-7381 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-155-7381. Primary manufacturer part number: A-A-55602.
Features
  • Bearing,roller,cylindrical — FSC 3110
  • Material: STEEL INNER RING
  • Material: STEEL OUTER RING
  • Style Designator: SINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
  • Nondefinitive Spec/std Data: 212CL1GR00 TYPE
  • Material: STEEL ROLLER
  • Standard Tolerance Designation: RBEC NO.1
  • Bore Diameter: 100.0 MILLIMETERS NOMINAL MM
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Inner Ring construction
General Description

The Bearing,roller,cylindrical, cataloged under National Stock Number 3110-00-155-7381, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-155-7381
Primary Part NumberA-A-55602
Item NameBearing,roller,cylindrical
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusCANCELLED
MaterialSTEEL INNER RING
MaterialSTEEL OUTER RING
Style DesignatorSINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
Nondefinitive Spec/std Data212CL1GR00 TYPE
MaterialSTEEL ROLLER
Standard Tolerance DesignationRBEC NO.1
Bore Diameter100.0 MILLIMETERS NOMINAL MM
Internal Fit-Up DesignationSTANDARD
Locating FeatureNONLOCATING
Overall Outside Diameter180.0 MILLIMETERS NOMINAL MM
Surface FinishGROUND
Bore ShapeSTRAIGHT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-155-7340 INTERCHANGEABLE
Bearing,roller,cylindrical
3110-00-155-7342 INTERCHANGEABLE
Bearing,roller,cylindrical
3110-00-155-7344 INTERCHANGEABLE
Bearing,roller,cylindrical
3110-00-155-7345 INTERCHANGEABLE
Bearing,roller,cylindrical
3110-00-155-7362 INTERCHANGEABLE
Bearing,roller,cylindrical
3110-00-155-7380 INTERCHANGEABLE
Bearing,roller,cylindrical
3110-00-156-1723 INTERCHANGEABLE
Bearing,ball,thrust
3110-00-158-8161 INTERCHANGEABLE
Bearing,ball,annular
3110-00-241-6618MU1309UM INTERCHANGEABLE
Bearing,roller,cylindrical
Ntn Bearing Corporation of America
5331-00-250-0224MS29513-020 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
A-A-55602 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
R200 Fag Bearings Corporation (USA)
N220 Skf Usa Inc. (USA)
FF-B-185 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
R200 Equitable Bearing Co Inc (USA)
MCS220X Regal Beloit America, Inc. Dba Rollway Bearing (USA)
BU1220Z General Motors Corp (USA)
MCS220A Regal Beloit America, Inc. Dba Rollway Bearing (USA)
1793 Kingsbury, Inc. Dba Messinger Bearings Div Messinger Bearings (USA)
A-A-55602-33JC0 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
N220 Naval Ship Systems Command (USA)
100RN02 Timken Aerospace, Inc Dba Torrington Product (USA)
U-1220-E Regal Beloit America, Inc. Dba Rollway Bearing (USA)
100RN02 Timken Co Div the Timken Company (USA)
N220M Skf Usa Inc. (USA)
MCS220 Regal Beloit America, Inc. Dba Rollway Bearing (USA)
CM220 American Roller Bearing Inc (USA)
220 Kingsbury, Inc. Dba Messinger Bearings Div Messinger Bearings (USA)
BU1220Z General Motors Corp Delco Moraine Ndh Div (USA)
Related Parts
3110-00-155-7340INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
3110-00-155-7342INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
3110-00-155-7344INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
3110-00-155-7345INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
3110-00-155-7362INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
3110-00-155-7380INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
3110-00-156-1723INTERCHANGEABLE
BEARING,BALL,THRUST
3110-00-158-8161INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-241-6618INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
MU1309UM
5331-00-250-0224INTERCHANGEABLE
O-RING
MS29513-020
5315-00-291-8517INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
R200
3120-00-293-5041INTERCHANGEABLE
BEARING,SLEEVE
GBF79

Frequently Asked Questions

What is NSN 3110-00-155-7381?

NSN 3110-00-155-7381 is a Bearing,roller,cylindrical, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-155-7381?

NSN 3110-00-155-7381 has 19 cross-referenced part numbers: A-A-55602 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), R200 (Fag Bearings Corporation), N220 (Skf Usa Inc.), FF-B-185 (Federal Specifications Promulgated by General Services Administration Washington DC), R200 (Equitable Bearing Co Inc) and 14 more.

What NSN replaces 3110-00-155-7381?

There are 12 known substitutes for 3110-00-155-7381: 3110-00-155-7340, 3110-00-155-7342, 3110-00-155-7344 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-55602?

Key specifications for A-A-55602: Material: STEEL INNER RING; Material: STEEL OUTER RING; Style Designator: SINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE; Nondefinitive Spec/std Data: 212CL1GR00 TYPE. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-155-7381 still in active supply?

NSN 3110-00-155-7381 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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