PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18017Elbow,duct

Engineered Air Systems, Inc. Dba Drs Sustainment Systems · NSN 4520-01-042-3048 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-042-3048 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-042-3048. Primary manufacturer part number: 18017.
Features
  • Elbow,duct — FSC 4520
  • General Characteristics Item Description: 15.000 IN. O/A LG,7.749 IN. O/A W IN
  • 3 verified cross-references
  • Primary manufacturer: Engineered Air Systems, Inc. Dba Drs Sustainment Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Elbow,duct, cataloged under National Stock Number 4520-01-042-3048, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Engineered Air Systems, Inc. Dba Drs Sustainment Systems. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN4520-01-042-3048
Primary Part Number18017
Item NameElbow,duct
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerEngineered Air Systems, Inc. Dba Drs Sustainment Systems
StatusACTIVE
General Characteristics Item Description15.000 IN. O/A LG,7.749 IN. O/A W IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-071-7752580R046H01 INTERCHANGEABLE
Reactor
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5133-00-189-9262 INTERCHANGEABLE
Drill,twist
3110-00-227-3238 INTERCHANGEABLE
Bearing,roller,needle
5935-00-577-2534 INTERCHANGEABLE
Connector,receptacle,electrical
5315-00-903-234518017 INTERCHANGEABLE
Pin,grooved,headed
Gyrus Acmi L.p. Dba Circon-Acmi Div
3040-01-118-456018017 INTERCHANGEABLE
Rod,piston,linear Actuating Cyli
Manitowoc Engineering Co Division of the Manitowoc Co Inc
3020-01-143-8068 INTERCHANGEABLE
Gear,spur
Cross-Reference Index
Part NumberManufacturer
18017 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
18017 Drs Environmental Systems Inc (USA)
18017 Hdt Expeditionary Systems Inc (USA)
Related Parts
5950-00-071-7752INTERCHANGEABLE
REACTOR
580R046H01
5133-00-189-9262INTERCHANGEABLE
DRILL,TWIST
3110-00-227-3238INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
5935-00-577-2534INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5315-00-903-2345INTERCHANGEABLE
PIN,GROOVED,HEADED
18017
3040-01-118-4560INTERCHANGEABLE
ROD,PISTON,LINEAR ACTUATING CYLI
18017
3020-01-143-8068INTERCHANGEABLE
GEAR,SPUR

Frequently Asked Questions

What is NSN 4520-01-042-3048?

NSN 4520-01-042-3048 is a Elbow,duct, manufactured by Engineered Air Systems, Inc. Dba Drs Sustainment Systems, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-042-3048?

NSN 4520-01-042-3048 has 3 cross-referenced part numbers: 18017 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 18017 (Drs Environmental Systems Inc), 18017 (Hdt Expeditionary Systems Inc).

What NSN replaces 4520-01-042-3048?

There are 7 known substitutes for 4520-01-042-3048: 5950-00-071-7752, 5133-00-189-9262, 3110-00-227-3238 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18017?

Key specifications for 18017: End Item Identification: PT250-9/MC-1 AND PT250-10/MD-1; General Characteristics Item Description: 15.000 IN. O/A LG,7.749 IN. O/A W IN. 2 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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