PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet
MRO / Bearings / 3110-00-812-3605

R20Bearing,ball,annular

Skf Usa Inc. · NSN 3110-00-812-3605 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-812-3605 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-812-3605. Primary manufacturer part number: R20.
⌀STRAIGHT OD 2.2500 INCHES NOMINAL IN W 0.3750 INCHES NOMINAL IN BALL BEARING — CUTAWAY
3110-00-812-3605 — No Item Name Available illustration
Features
  • Bearing,ball,annular — FSC 3110
  • Internal Fit-Up Designation: STANDARD
  • Bore Diameter: 1.2500 INCHES NOMINAL IN
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Material: STEEL OVERALL
  • Retainer Fabrication Method: PRESSED
  • Overall Outside Diameter: 2.2500 INCHES NOMINAL IN
  • Surface Finish: GROUND
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-812-3605, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-812-3605
Primary Part NumberR20
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSkf Usa Inc.
StatusACTIVE
Internal Fit-Up DesignationSTANDARD
Bore Diameter1.2500 INCHES NOMINAL IN
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL OVERALL
Retainer Fabrication MethodPRESSED
Overall Outside Diameter2.2500 INCHES NOMINAL IN
Surface FinishGROUND
Standard Tolerance DesignationABEC NO.1
Load DirectionRADIAL
Bore ShapeSTRAIGHT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
⇄ Verified Substitutes 11
5360-00-497-3752R20 INTERCHANGEABLE
Spring,helical,compression
Baumbach E a Mfg Co
3110-00-554-291713026360 INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
2940-00-973-969051190 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5905-01-089-6509 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
4820-01-117-0732R-20 INTERCHANGEABLE
Valve,butterfly
Emerson Automation Solutions Final Control Us Lp
4820-01-161-6289S-12-R INTERCHANGEABLE
Valve,linear,directional Control
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
5840-01-340-1694R-20 INTERCHANGEABLE
Navigational,radar
Raytheon Company Dba Raytheon Co
5895-01-446-2362 INTERCHANGEABLE
Detector,audio Frequency
6640-01-467-5488R20 INTERCHANGEABLE
Pipet,micro
Rainin Instruments Inc
3439-01-524-5436R25A INTERCHANGEABLE
Soldering Iron,electric
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
R20 PRIMARY Skf Usa Inc. (USA)
BACB10A15 The Boeing Company Div Legacy Wichita (USA)
S12K PRIMARY Timken Co Div the Timken Company (USA)
R20 General Motors Corp (USA)
S12R PRIMARY Fag Bearings Corporation (USA)
R20 General Motors Corp Delco Moraine Ndh Div (USA)
Related Parts
5360-00-497-3752INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
R20
3110-00-554-2917INTERCHANGEABLE
BEARING,BALL,ANNULAR
13026360
2940-00-973-9690INTERCHANGEABLE
FILTER ELEMENT,FLUID
51190
5905-01-089-6509INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
4820-01-117-0732INTERCHANGEABLE
VALVE,BUTTERFLY
R-20
4820-01-161-6289INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
S-12-R
5840-01-340-1694INTERCHANGEABLE
NAVIGATIONAL,RADAR
R-20
5895-01-446-2362INTERCHANGEABLE
DETECTOR,AUDIO FREQUENCY
6640-01-467-5488INTERCHANGEABLE
PIPET,MICRO
R20
3439-01-524-5436INTERCHANGEABLE
SOLDERING IRON,ELECTRIC
R25A
8145-01-725-3062INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,M
RKR200-0000-BLK

Frequently Asked Questions

What is NSN 3110-00-812-3605?

NSN 3110-00-812-3605 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 3110-00-812-3605?

NSN 3110-00-812-3605 has 6 cross-referenced part numbers: R20 (Skf Usa Inc.), BACB10A15 (The Boeing Company Div Legacy Wichita), S12K (Timken Co Div the Timken Company), R20 (General Motors Corp), S12R (Fag Bearings Corporation) and 1 more.

What NSN replaces 3110-00-812-3605?

There are 11 known substitutes for 3110-00-812-3605: 5360-00-497-3752, 3110-00-554-2917, 2940-00-973-9690 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R20?

Key specifications for R20: Internal Fit-Up Designation: STANDARD; Bore Diameter: 1.2500 INCHES NOMINAL IN; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE; Material: STEEL OVERALL. 11 total characteristics are documented in the Federal Logistics Information System.

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