PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

IR121616Ring,bearing,inner

Timken Aerospace, Inc Dba Torrington Product · NSN 3110-00-156-8446 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-156-8446 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-156-8446. Primary manufacturer part number: IR121616.
Features
  • Ring,bearing,inner — FSC 3110
  • Surface Finish: GROUND
  • Material: STEEL OVERALL
  • Bore Diameter: 0.7500 INCHES NOMINAL IN
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
  • Bore Shape: STRAIGHT
  • Style Designator: SOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
  • Overall Outside Diameter: 1.0000 INCHES NOMINAL IN
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 3110-00-156-8446, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-156-8446
Primary Part NumberIR121616
Item NameRing,bearing,inner
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Aerospace, Inc Dba Torrington Product
StatusCANCELLED
Surface FinishGROUND
MaterialSTEEL OVERALL
Bore Diameter0.7500 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
Bore ShapeSTRAIGHT
Style DesignatorSOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
Overall Outside Diameter1.0000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
1650-00-740-7087W1121-6-1.6 INTERCHANGEABLE
Valve,regulating Fl
Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
2920-00-816-9844404 INTERCHANGEABLE
Spark Plug
Allied-Signal Inc Autolite Div
5340-00-924-6088490177 INTERCHANGEABLE
Plug,protective,dust and Moistur
Horst Engineering & Manufacturing Co
3695-01-019-0605 INTERCHANGEABLE
Saw,slab
3895-01-059-0129 INTERCHANGEABLE
Melter,asphalt
5365-01-096-6700 INTERCHANGEABLE
Spacer,sleeve
4820-01-157-9624121616-1.25 INTERCHANGEABLE
Pilot Assembly Kit,inner
Aerco International, Inc. Dba Aerco International Inc
3220-01-242-2322 INTERCHANGEABLE
Gib
5998-01-423-7989121616 INTERCHANGEABLE
Electronic Components Assembly
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
4320-01-529-2081MI-1-2 INTERCHANGEABLE
Ring,lantern
Motion Industries, Inc. Div Corpus Christi
Cross-Reference Index
Part NumberManufacturer
MT12 Mcgill Manufacturing Co, Inc (USA)
MI12 Mcgill Manufacturing Company Inc Use CAGE Code 92563 for Cataloging. (USA)
4-063-69-0003 Air Products & Chemicals, Inc (USA)
121616 Timken Aerospace, Inc Dba Torrington Product (USA)
490177 Bosch Automation Technology (USA)
IR121616 PRIMARY Timken Aerospace, Inc Dba Torrington Product (USA)
1121616 Timken Aerospace, Inc Dba Torrington Product (USA)
72698 Keco Industries, Inc. (USA)
MI12 Mcgill Manufacturing Co, Inc (USA)
1-121616 Timken Aerospace, Inc Dba Torrington Product (USA)
B72698 Keco Industries, Inc. (USA)
IR7194 Rbc Bearings Incorporated Div West Trenton Division (USA)
10108499-1 Us Army Aviation and Missile Command (USA)
Related Parts
1650-00-740-7087INTERCHANGEABLE
VALVE,REGULATING FL
W1121-6-1.6
2920-00-816-9844INTERCHANGEABLE
SPARK PLUG
404
5340-00-924-6088INTERCHANGEABLE
PLUG,PROTECTIVE,DUST AND MOISTUR
490177
3695-01-019-0605INTERCHANGEABLE
SAW,SLAB
3895-01-059-0129INTERCHANGEABLE
MELTER,ASPHALT
5365-01-096-6700INTERCHANGEABLE
SPACER,SLEEVE
4820-01-157-9624INTERCHANGEABLE
PILOT ASSEMBLY KIT,INNER
121616-1.25
3220-01-242-2322INTERCHANGEABLE
GIB
5998-01-423-7989INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
121616
4320-01-529-2081INTERCHANGEABLE
RING,LANTERN
MI-1-2
6510-01-605-2234INTERCHANGEABLE
BANDAGE,GAUZE
30-0003

Frequently Asked Questions

What is NSN 3110-00-156-8446?

NSN 3110-00-156-8446 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 3110-00-156-8446?

NSN 3110-00-156-8446 has 13 cross-referenced part numbers: MT12 (Mcgill Manufacturing Co, Inc), MI12 (Mcgill Manufacturing Company Inc Use CAGE Code 92563 for Cataloging.), 4-063-69-0003 (Air Products & Chemicals, Inc), 121616 (Timken Aerospace, Inc Dba Torrington Product), 490177 (Bosch Automation Technology) and 8 more.

What NSN replaces 3110-00-156-8446?

There are 11 known substitutes for 3110-00-156-8446: 1650-00-740-7087, 2920-00-816-9844, 5340-00-924-6088 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of IR121616?

Key specifications for IR121616: Surface Finish: GROUND; Material: STEEL OVERALL; Special Features: OIL HOLE AND GROOVE; Overall Width: 1.0100 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-156-8446 still in active supply?

NSN 3110-00-156-8446 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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