NSN 4720-01-204-9575 · NIIN 012049575 · Part number LE271-0073-0001
The Boeing Company Div Legacy Am&m · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 43999
Government record, cited
NSN 4720-01-204-9575 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-204-9575. Manufacturer of record part number: LE271-0073-0001.
Also searched as4720-01-204-9575 ·
4720012049575 ·
NIIN 012049575 ·
01-204-9575 ·
FSC 4720 Hose and Flexible Tubing · CAGE 43999 · LE271-0073-0001 · D5175-1 · LE271-0073
Operating Pressure: 7.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
2 manufacturer part numbers on file
Manufacturer of record: The Boeing Company Div Legacy Am&m
Identification
NSN: 4720-01-204-9575
NIIN: 012049575
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: LE271-0073-0001
Manufacturer: The Boeing Company Div Legacy Am&m
General Description
The Hose Assembly,air Duct, cataloged under National Stock Number 4720-01-204-9575, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4720-01-204-9575
Primary Part Number
LE271-0073-0001
Item Name
Hose Assembly,air Duct
FSC / FSG
4720 / 47 — Hose and Flexible Tubing
Manufacturer
The Boeing Company Div Legacy Am&m
Status
ACTIVE
Cross-Sectional Shape Style
ROUND
Operating Pressure
7.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
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
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4720-01-242-4587LE271-0073-0003POSSIBLE MATCH
HOSE ASSEMBLY,AIR DUCT
Possible match (shared part number)The Boeing Company Div Legacy Am&m
4720-01-242-4588LE271-0073-0007POSSIBLE MATCH
HOSE ASSEMBLY,AIR DUCT
Possible match (shared part number)The Boeing Company Div Legacy Am&m
4720-01-242-4589D5175-9POSSIBLE MATCH
HOSE ASSEMBLY,AIR DUCT
Possible match (shared part number)Kirkhill, Inc. Dba Kirkhill Inc
4720-01-242-4592D5175-2POSSIBLE MATCH
HOSE ASSEMBLY,AIR DUCT
Possible match (shared part number)Kirkhill, Inc. Dba Kirkhill Inc
4720-01-242-4593D5175-4POSSIBLE MATCH
HOSE ASSEMBLY,AIR DUCT
Possible match (shared part number)Kirkhill, Inc. Dba Kirkhill Inc
4720-01-242-7793LE271-0073-0005POSSIBLE MATCH
HOSE ASSEMBLY,AIR DUCT
Possible match (shared part number)The Boeing Company Div Legacy Am&m
NSN 4720-01-204-9575 is a Hose Assembly,air Duct, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
What part numbers are listed for NSN 4720-01-204-9575?
NSN 4720-01-204-9575 has 2 manufacturer part numbers on file: LE271-0073-0001 (The Boeing Company Div Legacy Am&m), D5175-1 (Kirkhill, Inc. Dba Kirkhill Inc).
What NSN replaces 4720-01-204-9575?
6 possible matches (shared part number, not a government interchangeability claim): 4720-01-242-4587, 4720-01-242-4588, 4720-01-242-4589. Verify interchangeability with system specifications before substitution.
What are the specifications of LE271-0073-0001?
Key specifications for LE271-0073-0001: Cross-Sectional Shape Style: ROUND; Operating Pressure: 7.5 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4720-01-204-9575 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.