PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18043Housing,fan

Engineered Air Systems, Inc. Dba Drs Sustainment Systems · NSN 4520-01-042-3050 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-042-3050 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-042-3050. Primary manufacturer part number: 18043.
Features
  • Housing,fan — FSC 4520
  • General Characteristics Item Description: COMPONENTS,PLATE,FLANGE 1,P/N 18023,SCROLL,FAN HOUSING 1,P/N 18234,SIDE PLATE,FAN HOUSING 1,P/N 18044,SIDE PLATE,FAN HOUSING 1,P/N 18230
  • 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 Housing,fan, cataloged under National Stock Number 4520-01-042-3050, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-042-3050
Primary Part Number18043
Item NameHousing,fan
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerEngineered Air Systems, Inc. Dba Drs Sustainment Systems
StatusACTIVE
General Characteristics Item DescriptionCOMPONENTS,PLATE,FLANGE 1,P/N 18023,SCROLL,FAN HOUSING 1,P/N 18234,SIDE PLATE,FAN HOUSING 1,P/N 18044,SIDE PLATE,FAN HOUSING 1,P/N 18230
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2805-00-052-3509 INTERCHANGEABLE
Cylinder Assembly,g
5365-00-102-28181804-3 INTERCHANGEABLE
Shim
Aerocontrolex Group, Inc. Div Talley Actuators
5133-00-189-9288 INTERCHANGEABLE
Drill,twist
5970-00-923-7173301A022-3-0 INTERCHANGEABLE
Insulation Sleeving,electrical,s
Te Connectivity Corporation Dba Raychem Product Division
5360-00-938-441418043 INTERCHANGEABLE
Spring
Gyrus Acmi L.p. Dba Circon-Acmi Div
3020-01-205-877918643 INTERCHANGEABLE
Gear Rack
Moog Inc. Dba Ampac-Isp Corp
6515-01-586-76586872022 INTERCHANGEABLE
Monitor,anesthetic Agent
Draeger Inc
7710-01-707-014018043 INTERCHANGEABLE
Trumpet
Conn-Selmer, Inc.
Cross-Reference Index
Part NumberManufacturer
18043 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
18043 Drs Environmental Systems Inc (USA)
18043 Hdt Expeditionary Systems Inc (USA)
Related Parts
2805-00-052-3509INTERCHANGEABLE
CYLINDER ASSEMBLY,G
5365-00-102-2818INTERCHANGEABLE
SHIM
1804-3
5133-00-189-9288INTERCHANGEABLE
DRILL,TWIST
5970-00-923-7173INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL,S
301A022-3-0
5360-00-938-4414INTERCHANGEABLE
SPRING
18043
3020-01-205-8779INTERCHANGEABLE
GEAR RACK
18643
6515-01-586-7658INTERCHANGEABLE
MONITOR,ANESTHETIC AGENT
6872022
7710-01-707-0140INTERCHANGEABLE
TRUMPET
18043

Frequently Asked Questions

What is NSN 4520-01-042-3050?

NSN 4520-01-042-3050 is a Housing,fan, 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 4520-01-042-3050?

NSN 4520-01-042-3050 has 3 cross-referenced part numbers: 18043 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 18043 (Drs Environmental Systems Inc), 18043 (Hdt Expeditionary Systems Inc).

What NSN replaces 4520-01-042-3050?

There are 8 known substitutes for 4520-01-042-3050: 2805-00-052-3509, 5365-00-102-2818, 5133-00-189-9288 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18043?

Key specifications for 18043: General Characteristics Item Description: COMPONENTS,PLATE,FLANGE 1,P/N 18023,SCROLL,FAN HOUSING 1,P/N 18234,SIDE PLATE,FAN HOUSING 1,P/N 18044,SIDE PLATE,FAN HOUSING 1,P/N 18230; End Item Identification: PT250-9/MC-1 AND PT250-10/MD-1. 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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