PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45594Gear Cluster

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · NSN 3020-00-561-2910 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-561-2910 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-561-2910. Primary manufacturer part number: 45594.
Features
  • Gear Cluster — FSC 3020
  • Bore Style: PLAIN BOTH ENDS
  • Nominal Outside Diameter: 1.841 INCHES FIRST GEAR IN
  • Construction: SOLID
  • Design Type: SPUR ALL GEARS
  • Bore Nominal Diameter: 0.179 INCHES BOTH ENDS IN
  • Material: STEEL OVERALL
  • Precision Classification: ACCURACY GRADE 8 FIRST GEAR
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear Cluster, cataloged under National Stock Number 3020-00-561-2910, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-561-2910
Primary Part Number45594
Item NameGear Cluster
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerOntic Engineering & Manufacturing, Inc Dba Ontic Us
StatusACTIVE
Bore StylePLAIN BOTH ENDS
Nominal Outside Diameter1.841 INCHES FIRST GEAR IN
ConstructionSOLID
Design TypeSPUR ALL GEARS
Bore Nominal Diameter0.179 INCHES BOTH ENDS IN
MaterialSTEEL OVERALL
Precision ClassificationACCURACY GRADE 8 FIRST GEAR
Hardness Rating22.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM OVERALL
Nominal Overall Length0.303 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3455-00-293-052508880 INTERCHANGEABLE
Cutter,milling,metal Slitting
Niagara Cutter Inc
5360-00-359-177410A6473 INTERCHANGEABLE
Spring
Napco International Llc Dba Napco International Inc
Cross-Reference Index
Part NumberManufacturer
45594 Parker-Hannifin Corporation Div Gas Turbine Fuel Systems (USA)
45594 PRIMARY Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
Related Parts
3455-00-293-0525INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
08880
5360-00-359-1774INTERCHANGEABLE
SPRING
10A6473

Frequently Asked Questions

What is NSN 3020-00-561-2910?

NSN 3020-00-561-2910 is a Gear Cluster, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-561-2910?

NSN 3020-00-561-2910 has 2 cross-referenced part numbers: 45594 (Parker-Hannifin Corporation Div Gas Turbine Fuel Systems), 45594 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).

What NSN replaces 3020-00-561-2910?

There are 2 known substitutes for 3020-00-561-2910: 3455-00-293-0525, 5360-00-359-1774. Verify interchangeability with system specifications before substitution.

What are the specifications of 45594?

Key specifications for 45594: Bore Style: PLAIN BOTH ENDS; Nominal Outside Diameter: 1.841 INCHES FIRST GEAR IN; Construction: SOLID; Design Type: SPUR ALL GEARS. 9 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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