PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21746Gear Cluster

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 3020-00-118-3778 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-118-3778 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-118-3778. Primary manufacturer part number: 21746.
Features
  • Gear Cluster — FSC 3020
  • Construction: ASSEMBLED
  • 2 verified cross-references
  • Primary manufacturer: Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear Cluster, cataloged under National Stock Number 3020-00-118-3778, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 1 verified specification, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-118-3778
Primary Part Number21746
Item NameGear Cluster
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusACTIVE
ConstructionASSEMBLED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4730-00-196-0936 INTERCHANGEABLE
Bushing,pipe
4710-00-289-0651279573 INTERCHANGEABLE
Tube,metallic
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
6110-00-635-704621746 INTERCHANGEABLE
Starter,motor
Ward Leonard Ct Llc
6110-00-643-0090 INTERCHANGEABLE
Starter,motor
5340-00-948-7151PM21746 INTERCHANGEABLE
Boot,dust and Moisture Seal
Mason Electric Co. Dba Mason Controls
5310-01-330-851621746 INTERCHANGEABLE
Washer,bevel
Parker Hannifin Corporation Div Hydraulic Systems Division
3460-01-357-451721746 INTERCHANGEABLE
Chuck,centering,lathe
Positrol Inc
Cross-Reference Index
Part NumberManufacturer
21746 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
21746 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
4730-00-196-0936INTERCHANGEABLE
BUSHING,PIPE
4710-00-289-0651INTERCHANGEABLE
TUBE,METALLIC
279573
6110-00-635-7046INTERCHANGEABLE
STARTER,MOTOR
21746
6110-00-643-0090INTERCHANGEABLE
STARTER,MOTOR
5340-00-948-7151INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
PM21746
5310-01-330-8516INTERCHANGEABLE
WASHER,BEVEL
21746
3460-01-357-4517INTERCHANGEABLE
CHUCK,CENTERING,LATHE
21746

Frequently Asked Questions

What is NSN 3020-00-118-3778?

NSN 3020-00-118-3778 is a Gear Cluster, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-118-3778?

NSN 3020-00-118-3778 has 2 cross-referenced part numbers: 21746 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 21746 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 3020-00-118-3778?

There are 7 known substitutes for 3020-00-118-3778: 4730-00-196-0936, 4710-00-289-0651, 6110-00-635-7046 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21746?

Key specifications for 21746: Construction: ASSEMBLED. 1 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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