PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18040Panel Assembly

Hdt Expeditionary Systems Inc · NSN 4520-01-042-3049 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-042-3049 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-042-3049. Primary manufacturer part number: 18040.
Features
  • Panel Assembly — FSC 4520
  • General Characteristics Item Description: COMPONENTS,PANEL STACK 1,P/N 18032,DRAIN ASSEMBLY STACK 1,P/N 18036,NUTSERTS 10-32,7 EA,P/N 9507-10
  • 3 verified cross-references
  • Primary manufacturer: Hdt Expeditionary Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Panel Assembly, cataloged under National Stock Number 4520-01-042-3049, 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 Hdt Expeditionary Systems Inc. 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
NSN4520-01-042-3049
Primary Part Number18040
Item NamePanel Assembly
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerHdt Expeditionary Systems Inc
StatusACTIVE
General Characteristics Item DescriptionCOMPONENTS,PANEL STACK 1,P/N 18032,DRAIN ASSEMBLY STACK 1,P/N 18036,NUTSERTS 10-32,7 EA,P/N 9507-10
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5133-00-189-9285 INTERCHANGEABLE
Drill,twist
3455-00-268-9350 INTERCHANGEABLE
Cutter,milling,involute Gear
3110-00-979-7835 INTERCHANGEABLE
Bearing,ball,annular
5950-01-049-78443223119 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4820-01-134-3456 INTERCHANGEABLE
Valve,float
5315-01-302-932618040 INTERCHANGEABLE
Pin,straight,headless
Coffin Turbo Pump Inc
5330-01-565-304418 040 INTERCHANGEABLE
Gasket
Winteb Usa, Inc
Cross-Reference Index
Part NumberManufacturer
18040 Drs Environmental Systems Inc (USA)
18040 PRIMARY Hdt Expeditionary Systems Inc (USA)
18040 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
Related Parts
5133-00-189-9285INTERCHANGEABLE
DRILL,TWIST
3455-00-268-9350INTERCHANGEABLE
CUTTER,MILLING,INVOLUTE GEAR
3110-00-979-7835INTERCHANGEABLE
BEARING,BALL,ANNULAR
5950-01-049-7844INTERCHANGEABLE
TRANSFORMER,POWER
3223119
4820-01-134-3456INTERCHANGEABLE
VALVE,FLOAT
5315-01-302-9326INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
18040
5330-01-565-3044INTERCHANGEABLE
GASKET
18 040

Frequently Asked Questions

What is NSN 4520-01-042-3049?

NSN 4520-01-042-3049 is a Panel Assembly, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-042-3049?

NSN 4520-01-042-3049 has 3 cross-referenced part numbers: 18040 (Drs Environmental Systems Inc), 18040 (Hdt Expeditionary Systems Inc), 18040 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems).

What NSN replaces 4520-01-042-3049?

There are 7 known substitutes for 4520-01-042-3049: 5133-00-189-9285, 3455-00-268-9350, 3110-00-979-7835 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18040?

Key specifications for 18040: End Item Identification: PT250-9/MC-1 AND PT250-10/MD-1; General Characteristics Item Description: COMPONENTS,PANEL STACK 1,P/N 18032,DRAIN ASSEMBLY STACK 1,P/N 18036,NUTSERTS 10-32,7 EA,P/N 9507-10. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com