PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S1RTFBearing,ball,annular

Fag Bearings Corporation · NSN 3110-00-293-8305 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-293-8305 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-293-8305. Primary manufacturer part number: S1RTF.
Features
  • Bearing,ball,annular — FSC 3110
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Material: STEEL OVERALL
  • Standard Tolerance Designation: ABEC NO.1
  • Bore Shape: STRAIGHT
  • Load Direction: RADIAL
  • Retainer Fabrication Method: PRESSED
  • Bore Diameter: 0.2500 INCHES NOMINAL IN
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 3110-00-293-8305, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Fag Bearings Corporation. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 35 commercial cross-references from 17 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
NSN3110-00-293-8305
Primary Part NumberS1RTF
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerFag Bearings Corporation
StatusCANCELLED
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL OVERALL
Standard Tolerance DesignationABEC NO.1
Bore ShapeSTRAIGHT
Load DirectionRADIAL
Retainer Fabrication MethodPRESSED
Bore Diameter0.2500 INCHES NOMINAL IN
Surface FinishGROUND
Internal Fit-Up DesignationSTANDARD
Overall Outside Diameter0.7500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
8030-00-085-57081286 INTERCHANGEABLE
Cement,gylptal
General Electric Company
6625-00-159-2232SM-A-571588 INTERCHANGEABLE
Adapter,test
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6810-00-222-9680 INTERCHANGEABLE
Ammonium Chloride
5999-00-238-2301 INTERCHANGEABLE
Contact,electrical
4730-00-278-8825SAE J246 6 120111B INTERCHANGEABLE
Nut,tube Coupling
Sae International Dba Sae International
9340-00-453-57291286 INTERCHANGEABLE
Glass,laminated
Cornell-Carr Co., Inc.
1650-00-513-48091286 INTERCHANGEABLE
Piston,linear Actuating Cylinder
Goodrich Corporation
5945-00-578-4844122578-01 INTERCHANGEABLE
Relay,electromagnetic
Ge Aviation Systems Llc
5315-00-663-9606103737 INTERCHANGEABLE
Pin,straight,headless
General Motors Llc Dba General Motors Llc
5930-00-685-9522 INTERCHANGEABLE
Switch,rotary
Cross-Reference Index
Part NumberManufacturer
R4AX1 General Motors Corp (USA)
S1RTF PRIMARY Fag Bearings Corporation (USA)
R4A4Q5B7 Skf Usa Inc. (USA)
S1K PRIMARY Timken Co Div the Timken Company (USA)
11014596-7 PRIMARY Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
31-50169-2 PRIMARY Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
S1KFS56850 PRIMARY Timken Co Div the Timken Company (USA)
157052-18 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
8914-5 Arma Div Ambac Industries Inc
S1FT Timken Co Div the Timken Company (USA)
R4AXR1266 General Motors Corp Delco Moraine Ndh Div (USA)
177039-61 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
S1SQ5A7 PRIMARY Skf Usa Inc. (USA)
136337-22 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
281478-10 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
R4A4 Skf Usa Inc. (USA)
122578 Rosemount Analytical, Inc. Div Process Analytical Division (USA)
132114-23 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
136539-2 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
156959-19 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
8030-00-085-5708INTERCHANGEABLE
CEMENT,GYLPTAL
1286
6625-00-159-2232INTERCHANGEABLE
ADAPTER,TEST
SM-A-571588
6810-00-222-9680INTERCHANGEABLE
AMMONIUM CHLORIDE
5999-00-238-2301INTERCHANGEABLE
CONTACT,ELECTRICAL
4730-00-278-8825INTERCHANGEABLE
NUT,TUBE COUPLING
SAE J246 6 120111B
9340-00-453-5729INTERCHANGEABLE
GLASS,LAMINATED
1286
1650-00-513-4809INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
1286
5945-00-578-4844INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
122578-01
5315-00-663-9606INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
103737
5930-00-685-9522INTERCHANGEABLE
SWITCH,ROTARY
2530-00-869-7350INTERCHANGEABLE
UNLOADER SPRING SADDLE
240024
1615-00-909-7569INTERCHANGEABLE
COVER,BEARING
1286

Frequently Asked Questions

What is NSN 3110-00-293-8305?

NSN 3110-00-293-8305 is a Bearing,ball,annular, manufactured by Fag Bearings Corporation, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-293-8305?

NSN 3110-00-293-8305 has 35 cross-referenced part numbers: R4AX1 (General Motors Corp), S1RTF (Fag Bearings Corporation), R4A4Q5B7 (Skf Usa Inc.), S1K (Timken Co Div the Timken Company), 11014596-7 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate) and 30 more.

What NSN replaces 3110-00-293-8305?

There are 12 known substitutes for 3110-00-293-8305: 8030-00-085-5708, 6625-00-159-2232, 6810-00-222-9680 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S1RTF?

Key specifications for S1RTF: Style Designator: NON-LOADING GROOVE, NON-SEPARABLE; Material: STEEL OVERALL; Standard Tolerance Designation: ABEC NO.1; Bore Shape: STRAIGHT. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-293-8305 still in active supply?

NSN 3110-00-293-8305 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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