PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18-54034-7Duct

Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems · NSN 1660-01-029-7599 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-01-029-7599 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-029-7599. Primary manufacturer part number: 18-54034-7.
Features
  • Duct — FSC 1660
  • 2 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Duct, cataloged under National Stock Number 1660-01-029-7599, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDuct
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersNorthrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (CAGE 76823); Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector (CAGE 0JRC1)
Technical Specifications
ParameterValue
NSN1660-01-029-7599
Primary Part Number18-54034-7
Item NameDuct
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5961-00-105-7636 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
18-54034-7 Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA)
18-54034-7 Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector (USA)
Related Parts
5961-00-105-7636INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 1660-01-029-7599?

NSN 1660-01-029-7599 is a Duct, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-01-029-7599?

NSN 1660-01-029-7599 has 2 cross-referenced part numbers: 18-54034-7 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), 18-54034-7 (Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector).

What NSN replaces 1660-01-029-7599?

There is 1 known substitute for 1660-01-029-7599: 5961-00-105-7636. Verify interchangeability with system specifications before substitution.

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