PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

347C500A1C4D040Gear,spur

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 3020-00-804-0018 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-804-0018 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-804-0018. Primary manufacturer part number: 347C500A1C4D040.
Features
  • Gear,spur — FSC 3020
  • 6 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-804-0018, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameGear,spur
FSC / FSG3020 — No Item Name Available (FSG 30)
ManufacturersInstruments and Flight Research, Inc. (CAGE 22525); Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (CAGE 97942); Harmonic Drive L.l.c. (CAGE 34519); Westinghouse Electric Corp (CAGE 79500); Roller Bearing Co of America, Inc Div Pic Design (CAGE 00141)
Technical Specifications
ParameterValue
NSN3020-00-804-0018
Primary Part Number347C500A1C4D040
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4720-00-228-12167700065 INTERCHANGEABLE
Hose Assembly,nonmetallic
Ed Etnyre & Co
3040-00-769-33197X1-06-050 INTERCHANGEABLE
Shaft,straight
Designatronics Inc Div Stock Drive Products
5340-01-343-8041G-440 INTERCHANGEABLE
Strap Assy Padded
L3 Technologies, Inc. Div L3 Keo
7610-01-653-1141G440 INTERCHANGEABLE
Manual,technical
Team Wendy Llc Div Team Wendy
Cross-Reference Index
Part NumberManufacturer
518307-40 Instruments and Flight Research, Inc. (USA)
347C500A1C4D040 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
4840H20 1-4 Harmonic Drive L.l.c. (USA)
347C500A1C4D040 Westinghouse Electric Corp (USA)
G4-40 PRIMARY Roller Bearing Co of America, Inc Div Pic Design (USA)
GP25-40 Secs Inc (USA)
Related Parts
4720-00-228-1216INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
7700065
3040-00-769-3319INTERCHANGEABLE
SHAFT,STRAIGHT
7X1-06-050
5340-01-343-8041INTERCHANGEABLE
STRAP ASSY PADDED
G-440
7610-01-653-1141INTERCHANGEABLE
MANUAL,TECHNICAL
G440

Frequently Asked Questions

What is NSN 3020-00-804-0018?

NSN 3020-00-804-0018 is a Gear,spur, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-804-0018?

NSN 3020-00-804-0018 has 6 cross-referenced part numbers: 518307-40 (Instruments and Flight Research, Inc.), 347C500A1C4D040 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 4840H20 1-4 (Harmonic Drive L.l.c.), 347C500A1C4D040 (Westinghouse Electric Corp), G4-40 (Roller Bearing Co of America, Inc Div Pic Design) and 1 more.

What NSN replaces 3020-00-804-0018?

There are 4 known substitutes for 3020-00-804-0018: 4720-00-228-1216, 3040-00-769-3319, 5340-01-343-8041 and 1 more. Verify interchangeability with system specifications before substitution.

Is NSN 3020-00-804-0018 still in active supply?

NSN 3020-00-804-0018 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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