PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43186Pipe,air Conditioning-Heating

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 4520-00-274-5820 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-274-5820 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-274-5820. Primary manufacturer part number: 43186.
Features
  • Pipe,air Conditioning-Heating — FSC 4520
  • Cross-Sectional Width: 10.500 INCHES NOMINAL IN
  • Material: ALUMINIZED FIBERGLASS
  • Construction: DOUBLE
  • Length: 75.625 INCHES NOMINAL IN
  • Material Thickness: 1.0000 INCHES IN
  • Cross-Sectional Length: 23.000 INCHES NOMINAL IN
  • Shape: RECTANGULAR
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminized Fiberglass construction
General Description

The Pipe,air Conditioning-Heating, cataloged under National Stock Number 4520-00-274-5820, 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 L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4520-00-274-5820
Primary Part Number43186
Item NamePipe,air Conditioning-Heating
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusCANCELLED
Cross-Sectional Width10.500 INCHES NOMINAL IN
MaterialALUMINIZED FIBERGLASS
ConstructionDOUBLE
Length75.625 INCHES NOMINAL IN
Material Thickness1.0000 INCHES IN
Cross-Sectional Length23.000 INCHES NOMINAL IN
ShapeRECTANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5330-00-291-234960239 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5950-00-910-0025P27-158-01 INTERCHANGEABLE
Transformer,power
Us Army Aviation and Missile Command
4510-01-348-2225 INTERCHANGEABLE
Bonnet
6640-01-468-698143186 INTERCHANGEABLE
Guard Column
Dionex Corporation
Cross-Reference Index
Part NumberManufacturer
43186 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
5330-00-291-2349INTERCHANGEABLE
SEAL,PLAIN ENCASED
60239
5950-00-910-0025INTERCHANGEABLE
TRANSFORMER,POWER
P27-158-01
4510-01-348-2225INTERCHANGEABLE
BONNET
6640-01-468-6981INTERCHANGEABLE
GUARD COLUMN
43186

Frequently Asked Questions

What is NSN 4520-00-274-5820?

NSN 4520-00-274-5820 is a Pipe,air Conditioning-Heating, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 4520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4520-00-274-5820?

NSN 4520-00-274-5820 has 1 cross-referenced part number: 43186 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 4520-00-274-5820?

There are 4 known substitutes for 4520-00-274-5820: 5330-00-291-2349, 5950-00-910-0025, 4510-01-348-2225 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43186?

Key specifications for 43186: Cross-Sectional Width: 10.500 INCHES NOMINAL IN; Material: ALUMINIZED FIBERGLASS; Construction: DOUBLE; Length: 75.625 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4520-00-274-5820 still in active supply?

NSN 4520-00-274-5820 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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