PartsTable TECHNICAL DATA SHEET

NSN 4720-01-164-0016Government record, cited

Hose, Air Duct4720-01-164-0016

NSN 4720-01-164-0016 · NIIN 011640016 · Part number 21A18-06C23-4

Meggitt Oregon Inc Dba Meggitt Oregon Inc Div Meggitt Polymers & Composites · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 60980

Government record, cited

NSN 4720-01-164-0016 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-164-0016. Manufacturer of record part number: 21A18-06C23-4.

Also searched as 4720-01-164-0016 · 4720011640016 · NIIN 011640016 · 01-164-0016 · FSC 4720 Hose and Flexible Tubing · CAGE 60980 · 21A18-06C23-4 · LE271-0106 · LE271-0106-0415

Nearby stock numbers ← 4720-01-164-0015 · 4720-01-164-0342 Hose Assembly, Nonmetallic →

4720-01-164-0016 — Hose and Flexible Tubing

Features

Hose,air Duct — FSC 4720
Measuring Method and Length: 3.750 INCHES NOMINAL OVERALL IN
Connection Style: ROUND FIRST END
Connection Type: SOFT FIRST END
Style Designator: FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS
Cross-Sectional Shape Style: ROUND
Wall Thickness: 0.060 INCHES NOMINAL IN
Operating Pressure: 40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS

Identification

NSN: 4720-01-164-0016
NIIN: 011640016
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 21A18-06C23-4
Manufacturer: Meggitt Oregon Inc Dba Meggitt Oregon Inc Div Meggitt Polymers & Composites

General Description

The Hose,air Duct, cataloged under National Stock Number 4720-01-164-0016, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Meggitt Oregon Inc Dba Meggitt Oregon Inc Div Meggitt Polymers & Composites. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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	4720-01-164-0016
Primary Part Number	21A18-06C23-4
Item Name	Hose,air Duct
FSC / FSG	4720 / 47 — Hose and Flexible Tubing
Manufacturer	Meggitt Oregon Inc Dba Meggitt Oregon Inc Div Meggitt Polymers & Composites
Status	ACTIVE
Measuring Method and Length	3.750 INCHES NOMINAL OVERALL IN
Connection Style	ROUND FIRST END
Connection Type	SOFT FIRST END
Style Designator	FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS
Cross-Sectional Shape Style	ROUND
Wall Thickness	0.060 INCHES NOMINAL IN
Operating Pressure	40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Features Provided	OZONE RESISTANT
Inside Diameter	1.500 INCHES NOMINAL FIRST END IN
End Overall Length	1.000 INCHES NOMINAL FIRST END IN
End Inside Diameter	0.750 INCHES NOMINAL FIRST END IN
Material	FIBERGLASS AND RUBBER SILICONE CLASS Q FIRST PLY
Material	STEEL AND COPPER ALLOY SECOND PLY

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 Items 7

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4720-01-185-117621A18-06C52-4 POSSIBLE MATCH

HOSE,AIR DUCT

Possible match (shared part number)Meggitt Oregon Inc Dba Meggitt Oregon Inc Div Meggitt Polymers & Composites

4720-01-185-117721A18-06C49-5 POSSIBLE MATCH

HOSE,AIR DUCT

Possible match (shared part number)Meggitt Oregon Inc Dba Meggitt Oregon Inc Div Meggitt Polymers & Composites

4720-01-199-657921A18-06C68-6 POSSIBLE MATCH

HOSE,AIR DUCT

Possible match (shared part number)Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc

4720-01-462-492421A18-06C15-4 POSSIBLE MATCH

HOSE,AIR DUCT

Possible match (shared part number)Meggitt Oregon Inc Dba Meggitt Oregon Inc Div Meggitt Polymers & Composites

4720-01-605-987521A18-06C30-6 POSSIBLE MATCH

HOSE,AIR DUCT

Possible match (shared part number)Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc

4720-01-627-803121A18-06C38-6 POSSIBLE MATCH

HOSE,AIR DUCT

Possible match (shared part number)Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc

4720-01-628-264321A18-06C23-6 POSSIBLE MATCH

HOSE,AIR DUCT

Possible match (shared part number)Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc

Cross-Reference Index

Part Number	Manufacturer
21A18-06C23-4 PRIMARY	Meggitt Oregon Inc Dba Meggitt Oregon Inc Div Meggitt Polymers & Composites (USA)
LE271-0106-0415	The Boeing Company Div Legacy Am&m (USA)

Reference documents

Reference	Meaning
LE271-0106	7/1 Vendor item drawing reference The Boeing Company Div Legacy Am&m
21A18-06C23-4	5/9 Secondary reference Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc

Related Parts

4720-01-185-1176POSSIBLE MATCH

HOSE,AIR DUCT

21A18-06C52-4

4720-01-185-1177POSSIBLE MATCH

HOSE,AIR DUCT

21A18-06C49-5

4720-01-199-6579POSSIBLE MATCH

HOSE,AIR DUCT

21A18-06C68-6

4720-01-462-4924POSSIBLE MATCH

HOSE,AIR DUCT

21A18-06C15-4

4720-01-605-9875POSSIBLE MATCH

HOSE,AIR DUCT

21A18-06C30-6

4720-01-627-8031POSSIBLE MATCH

HOSE,AIR DUCT

21A18-06C38-6

4720-01-628-2643POSSIBLE MATCH

HOSE,AIR DUCT

21A18-06C23-6

Frequently Asked Questions

What is NSN 4720-01-164-0016?

NSN 4720-01-164-0016 is a Hose,air Duct, manufactured by Meggitt Oregon Inc Dba Meggitt Oregon Inc Div Meggitt Polymers & Composites, classified under FSC 4720, Hose and Flexible Tubing. Status: active.

What part numbers are listed for NSN 4720-01-164-0016?

NSN 4720-01-164-0016 has 2 manufacturer part numbers on file: 21A18-06C23-4 (Meggitt Oregon Inc Dba Meggitt Oregon Inc Div Meggitt Polymers & Composites), LE271-0106-0415 (The Boeing Company Div Legacy Am&m).

What NSN replaces 4720-01-164-0016?

7 possible matches (shared part number, not a government interchangeability claim): 4720-01-185-1176, 4720-01-185-1177, 4720-01-199-6579. Verify interchangeability with system specifications before substitution.

What are the specifications of 21A18-06C23-4?

Key specifications for 21A18-06C23-4: Measuring Method and Length: 3.750 INCHES NOMINAL OVERALL IN; Connection Style: ROUND FIRST END; Connection Type: SOFT FIRST END; Style Designator: FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS. 13 specifications are documented in the U.S. Government catalog.

Is NSN 4720-01-164-0016 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.

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