PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SB2501-1Ring,bearing,inner

Timken Aerospace, Inc Dba Torrington Product · NSN 3110-00-580-1124 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-580-1124 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-580-1124. Primary manufacturer part number: SB2501-1.
Features
  • Ring,bearing,inner — FSC 3110
  • Bore Shape: STRAIGHT
  • Surface Finish: GROUND
  • Bore Diameter: 0.6870 INCHES MINIMUM AND 0.6880 INCHES MAXIMUM IN
  • Overall Outside Diameter: 1.0630 INCHES MINIMUM AND 1.0635 INCHES MAXIMUM IN
  • Style Designator: SOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
  • Material: STEEL OVERALL
  • 6 verified cross-references
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Ring,bearing,inner, cataloged under National Stock Number 3110-00-580-1124, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Timken Aerospace, Inc Dba Torrington Product. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 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
NSN3110-00-580-1124
Primary Part NumberSB2501-1
Item NameRing,bearing,inner
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Aerospace, Inc Dba Torrington Product
StatusCANCELLED
Bore ShapeSTRAIGHT
Surface FinishGROUND
Bore Diameter0.6870 INCHES MINIMUM AND 0.6880 INCHES MAXIMUM IN
Overall Outside Diameter1.0630 INCHES MINIMUM AND 1.0635 INCHES MAXIMUM IN
Style DesignatorSOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-044-4462SB2102-2 INTERCHANGEABLE
Bearing,roller,cylindrical
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
5133-00-189-9278 INTERCHANGEABLE
Drill,twist
4820-00-241-44271503-3 INTERCHANGEABLE
Valve,safety Relief
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
5970-00-438-504015733 INTERCHANGEABLE
Insulator,strain
Dayton-Granger, Inc.
5940-00-718-1721 INTERCHANGEABLE
Terminal,stud
2640-00-849-0537 INTERCHANGEABLE
Plug,pneumatic Tire Repair
5930-00-966-979715033 INTERCHANGEABLE
Stop,overtravel
Avox Systems Inc Dba Avox Systems Inc
3040-01-150-385115033 INTERCHANGEABLE
Housing,mechanical Drive
New Venture Gear Inc New Process Gear Div
3610-01-156-635515-033 INTERCHANGEABLE
Offset Blanket,rubber,printing P
Cds Supply Company, Inc.
7025-01-203-49961-5033 INTERCHANGEABLE
Disk
American Hofmann Corp
Cross-Reference Index
Part NumberManufacturer
SE342 Mcgill Manufacturing Co, Inc (USA)
SB2501-1 PRIMARY Timken Aerospace, Inc Dba Torrington Product (USA)
15033 Timken Aerospace, Inc Dba Torrington Product (USA)
SB2501-1 PRIMARY Mcgill Manufacturing Co, Inc (USA)
RA15033 Timken Aerospace, Inc Dba Torrington Product (USA)
SB2501-1 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
Related Parts
3110-00-044-4462INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
SB2102-2
5133-00-189-9278INTERCHANGEABLE
DRILL,TWIST
4820-00-241-4427INTERCHANGEABLE
VALVE,SAFETY RELIEF
1503-3
5970-00-438-5040INTERCHANGEABLE
INSULATOR,STRAIN
15733
5940-00-718-1721INTERCHANGEABLE
TERMINAL,STUD
2640-00-849-0537INTERCHANGEABLE
PLUG,PNEUMATIC TIRE REPAIR
5930-00-966-9797INTERCHANGEABLE
STOP,OVERTRAVEL
15033
3040-01-150-3851INTERCHANGEABLE
HOUSING,MECHANICAL DRIVE
15033
3610-01-156-6355INTERCHANGEABLE
OFFSET BLANKET,RUBBER,PRINTING P
15-033
7025-01-203-4996INTERCHANGEABLE
DISK
1-5033
5310-01-293-5284INTERCHANGEABLE
WASHER,FLAT
NW15033
5950-01-429-7648INTERCHANGEABLE
COIL,ELECTRICAL
588R749H01

Frequently Asked Questions

What is NSN 3110-00-580-1124?

NSN 3110-00-580-1124 is a Ring,bearing,inner, manufactured by Timken Aerospace, Inc Dba Torrington Product, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-580-1124?

NSN 3110-00-580-1124 has 6 cross-referenced part numbers: SE342 (Mcgill Manufacturing Co, Inc), SB2501-1 (Timken Aerospace, Inc Dba Torrington Product), 15033 (Timken Aerospace, Inc Dba Torrington Product), SB2501-1 (Mcgill Manufacturing Co, Inc), RA15033 (Timken Aerospace, Inc Dba Torrington Product) and 1 more.

What NSN replaces 3110-00-580-1124?

There are 12 known substitutes for 3110-00-580-1124: 3110-00-044-4462, 5133-00-189-9278, 4820-00-241-4427 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SB2501-1?

Key specifications for SB2501-1: Bore Shape: STRAIGHT; Surface Finish: GROUND; Special Features: END SQUARE W/OD WITHIN 0.0010 IN. PER IN.,OUT OF ROUND OD 0.0002 IN. MAX TOTAL INDICATOR READING,OD SURFACE FINISH 10 MICROINCHES AA,MAGNETIC PARTICLE INSPECTED /MAGNAFLUXED/ PER MILI6868,PART NO. MARKED ON FACE OF RACE IN ACCORDANCE W/SIKORSKY SPEC SS-8770 IN; Bore Diameter: 0.6870 INCHES MINIMUM AND 0.6880 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-580-1124 still in active supply?

NSN 3110-00-580-1124 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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