PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5566Gear,spur

Cummins Inc. · NSN 3020-00-361-6342 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-361-6342 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-361-6342. Primary manufacturer part number: 5566.
Features
  • Gear,spur — FSC 3020
  • Nominal Outside Diameter: 23.883 INCHES IN
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1050 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Body Style: PLAIN, SOLID
  • Pitch Diameter: 23.6667 INCHES NOMINAL IN
  • Pressure Angle: 20.0000 DEGREES
  • Style Designator: HUBLESS
  • Tooth Form: STANDARD
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 1050 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-361-6342, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-361-6342
Primary Part Number5566
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCummins Inc.
StatusACTIVE
Nominal Outside Diameter23.883 INCHES IN
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1050 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Body StylePLAIN, SOLID
Pitch Diameter23.6667 INCHES NOMINAL IN
Pressure Angle20.0000 DEGREES
Style DesignatorHUBLESS
Tooth FormSTANDARD
Teeth Quantity142
Bore Nominal Diameter22.372 INCHES BOTH ENDS IN
Bore StylePLAIN BOTH ENDS
Face Nominal Width1.036 INCHES IN
MaterialSTEEL COMP 1050 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5331-00-231-3235 INTERCHANGEABLE
O-Ring
5935-00-259-3336 INTERCHANGEABLE
Connector,receptacle,electrical
6685-00-756-5751 INTERCHANGEABLE
Tester,pyrometer and Thermocoupl
5998-01-048-3769 INTERCHANGEABLE
Circuit Card Assembly
9540-01-072-1176 INTERCHANGEABLE
Angle,structural
4730-01-195-380660UA06X06 INTERCHANGEABLE
Elbow,pipe
Aerocontrolex Group, Inc. Div Talley Actuators
5365-01-306-58945566 INTERCHANGEABLE
Spacer,ring
Howell Laboratories Inc Dba Howell Laboratories Inc
5120-01-399-9704 INTERCHANGEABLE
Socket,socket Wrench
6540-01-558-776512500-DY INTERCHANGEABLE
Ophthalmoscope
Welch Allyn, Inc.
2590-01-570-97205566 INTERCHANGEABLE
Bracket,vehicular Components
Festo (pty) Ltd
Cross-Reference Index
Part NumberManufacturer
5566 PRIMARY Cummins Inc. (USA)
H5566 Cummins Inc. (USA)
Related Parts
5331-00-231-3235INTERCHANGEABLE
O-RING
5935-00-259-3336INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
6685-00-756-5751INTERCHANGEABLE
TESTER,PYROMETER AND THERMOCOUPL
5998-01-048-3769INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
9540-01-072-1176INTERCHANGEABLE
ANGLE,STRUCTURAL
4730-01-195-3806INTERCHANGEABLE
ELBOW,PIPE
60UA06X06
5365-01-306-5894INTERCHANGEABLE
SPACER,RING
5566
5120-01-399-9704INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6540-01-558-7765INTERCHANGEABLE
OPHTHALMOSCOPE
12500-DY
2590-01-570-9720INTERCHANGEABLE
BRACKET,VEHICULAR COMPONENTS
5566

Frequently Asked Questions

What is NSN 3020-00-361-6342?

NSN 3020-00-361-6342 is a Gear,spur, manufactured by Cummins Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-361-6342?

NSN 3020-00-361-6342 has 2 cross-referenced part numbers: 5566 (Cummins Inc.), H5566 (Cummins Inc.).

What NSN replaces 3020-00-361-6342?

There are 10 known substitutes for 3020-00-361-6342: 5331-00-231-3235, 5935-00-259-3336, 6685-00-756-5751 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5566?

Key specifications for 5566: Nominal Outside Diameter: 23.883 INCHES IN; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1050 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Body Style: PLAIN, SOLID; Pitch Diameter: 23.6667 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com