PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CR20Cam Follower,needle Bearing

Timken Co Div the Timken Company · NSN 3110-00-159-1603 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-159-1603 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-159-1603. Primary manufacturer part number: CR20.
Features
  • Cam Follower,needle Bearing — FSC 3110
  • Style Designator: CAM FOLLOWER
  • Thread Series Designator: UNF
  • Stud Diameter: 0.5000 INCHES NOMINAL IN
  • Thread Length: 0.6250 INCHES NOMINAL IN
  • Stud Length: 1.2500 INCHES NOMINAL IN
  • Overall Outside Diameter: 1.2500 INCHES NOMINAL IN
  • Outer Ring Width: 0.7500 INCHES NOMINAL IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Cam Follower,needle Bearing, cataloged under National Stock Number 3110-00-159-1603, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-159-1603
Primary Part NumberCR20
Item NameCam Follower,needle Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusACTIVE
Style DesignatorCAM FOLLOWER
Thread Series DesignatorUNF
Stud Diameter0.5000 INCHES NOMINAL IN
Thread Length0.6250 INCHES NOMINAL IN
Stud Length1.2500 INCHES NOMINAL IN
Overall Outside Diameter1.2500 INCHES NOMINAL IN
Outer Ring Width0.7500 INCHES NOMINAL IN
Nominal Thread Size0.500 INCHES IN
Thread Quantity Per Inch20
Thread DirectionRIGHT-HAND
Thread Class3A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6240-00-019-3146 INTERCHANGEABLE
Lamp,incandescent
3610-00-109-8852 INTERCHANGEABLE
Punch,precision
3439-00-174-2616 INTERCHANGEABLE
Solder,liquid
3455-00-187-2633 INTERCHANGEABLE
Blade,hole Saw
5950-00-405-26652945-22 INTERCHANGEABLE
Transformer,power
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5110-00-473-7833S-119 INTERCHANGEABLE
Scraper,spray Booth
Ngk Metals Corporation Dba N G K Berylco
3455-00-808-4294SF-48X INTERCHANGEABLE
Cutter,milling,end
Quinco Tool Products Co Inc
3110-01-174-9984CF-1 1/4 INTERCHANGEABLE
Cam Follower,needle Bearing
Naval Inventory Control Point Mechanicsburg
3432-01-210-8924CR-20 INTERCHANGEABLE
Carriage,right
Fahringer T L Co Inc
7530-01-298-2752S-40 INTERCHANGEABLE
Paper,recording,facsimile
Astronova, Inc.
Cross-Reference Index
Part NumberManufacturer
CR20 PRIMARY Timken Co Div the Timken Company (USA)
S40 Orange Roller Bearing Co Inc (USA)
CF1-1-4 PRIMARY Mcgill Manufacturing Co, Inc (USA)
CTA45 PRIMARY Accurate Bushing Company, Inc. (USA)
CF1 1-4 Mcgill Manufacturing Company Inc Use CAGE Code 92563 for Cataloging. (USA)
8341195 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
CR20 Timken Aerospace, Inc Dba Torrington Product (USA)
1483408 PRIMARY Naval Ship Systems Command (USA)
CF25 PRIMARY Rbc Bearings Incorporated Div West Trenton Division (USA)
Related Parts
6240-00-019-3146INTERCHANGEABLE
LAMP,INCANDESCENT
3610-00-109-8852INTERCHANGEABLE
PUNCH,PRECISION
3439-00-174-2616INTERCHANGEABLE
SOLDER,LIQUID
3455-00-187-2633INTERCHANGEABLE
BLADE,HOLE SAW
5950-00-405-2665INTERCHANGEABLE
TRANSFORMER,POWER
2945-22
5110-00-473-7833INTERCHANGEABLE
SCRAPER,SPRAY BOOTH
S-119
3455-00-808-4294INTERCHANGEABLE
CUTTER,MILLING,END
SF-48X
3110-01-174-9984INTERCHANGEABLE
CAM FOLLOWER,NEEDLE BEARING
CF-1 1/4
3432-01-210-8924INTERCHANGEABLE
CARRIAGE,RIGHT
CR-20
7530-01-298-2752INTERCHANGEABLE
PAPER,RECORDING,FACSIMILE
S-40
5965-01-317-6077INTERCHANGEABLE
HEADSET-MICROPHONE
S-40
6530-01-320-7514INTERCHANGEABLE
BOTTLE,SAFETY CAP
CR-2015520 KERR

Frequently Asked Questions

What is NSN 3110-00-159-1603?

NSN 3110-00-159-1603 is a Cam Follower,needle Bearing, manufactured by Timken Co Div the Timken Company, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-159-1603?

NSN 3110-00-159-1603 has 9 cross-referenced part numbers: CR20 (Timken Co Div the Timken Company), S40 (Orange Roller Bearing Co Inc), CF1-1-4 (Mcgill Manufacturing Co, Inc), CTA45 (Accurate Bushing Company, Inc.), CF1 1-4 (Mcgill Manufacturing Company Inc Use CAGE Code 92563 for Cataloging.) and 4 more.

What NSN replaces 3110-00-159-1603?

There are 12 known substitutes for 3110-00-159-1603: 6240-00-019-3146, 3610-00-109-8852, 3439-00-174-2616 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CR20?

Key specifications for CR20: Style Designator: CAM FOLLOWER; Overall Length: 2.0312 INCHES NOMINAL IN; Thread Series Designator: UNF; Stud Diameter: 0.5000 INCHES NOMINAL IN. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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