FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal
Government record, cited
Also searched as4520-01-172-7623 ·
4520011727623 ·
NIIN 011727623 ·
01-172-7623 ·
FSC 4520 Space and Water Heating Equipment
Nearby stock numbers← 4520-01-172-2952 Unit Heater, Air Circulating, Stea
·
4520-01-172-7741 →
Features
Pipe,air Conditioning-Heating — FSC 4520
Length: 36.000 INCHES NOMINAL IN
Shape: ROUND
Construction: DOUBLE
Surface Treatment: ZINC
Material: STEEL AND ALUMINUM
Cross-Sectional Diameter: 5.500 INCHES NOMINAL IN
Identification
NSN: 4520-01-172-7623
NIIN: 011727623
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
General Description
The Pipe,air Conditioning-Heating, cataloged under National Stock Number 4520-01-172-7623, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4520-01-172-7623
Item Name
Pipe,air Conditioning-Heating
FSC / FSG
4520 / 45 — Space and Water Heating Equipment
Status
ACTIVE
Length
36.000 INCHES NOMINAL IN
Shape
ROUND
Construction
DOUBLE
Surface Treatment
ZINC
Material
STEEL AND ALUMINUM
Cross-Sectional Diameter
5.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
5RP3
3/9Design control — primary reference
Interpace Corp Hart and Cooley Div
No interchangeability data on file.
Other items in FSC 4520 — Space and Water Heating Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4520-00-000-0098
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-000-0099
4520-00-000-0099 · Item name not on file
4520-00-001-1240
4520-00-001-1240 · Item name not on file
4520-00-001-3518
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-3519
HEATING ELEMENT,ELECTRICAL,IMMER
4520-00-001-6052
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-6298
HEATING ELEMENT,ELECTRICAL,NONIM
4520-00-001-7726
HEATER,DUCT TYPE,PORTABLE
Frequently Asked Questions
What is NSN 4520-01-172-7623?
NSN 4520-01-172-7623 is a Pipe,air Conditioning-Heating, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
What are the specifications of 4520-01-172-7623?
Key specifications for 4520-01-172-7623: Length: 36.000 INCHES NOMINAL IN; Shape: ROUND; Construction: DOUBLE; Surface Treatment: ZINC. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4520-01-172-7623 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.