PartsTable TECHNICAL DATA SHEET

NSN 4720-01-146-4604Government record, cited

Tubing, Nonmetallic4720-01-146-4604

NSN 4720-01-146-4604 · NIIN 011464604

FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings

Government record, cited

Also searched as 4720-01-146-4604 · 4720011464604 · NIIN 011464604 · 01-146-4604 · FSC 4720 Hose and Flexible Tubing · 4675606 · 4675333-0F20 · 4675333

Nearby stock numbers ← 4720-01-146-4603 · 4720-01-146-4843 →

4720-01-146-4604 — Hose and Flexible Tubing

Features

Tubing,nonmetallic — FSC 4720
Measuring Method and Length: 4.000 INCHES NOMINAL OVERALL IN
Flexibility: FLEXIBLE
Cross-Sectional Shape Style: ROUND
Outside Diameter: 7.600 INCHES NOMINAL IN
Inside Diameter: 7.350 INCHES NOMINAL IN
Inside Surface Condition: SMOOTH
Minimum Tensile Strength: 1500 POUNDS PER SQUARE INCH LBS

Identification

NSN: 4720-01-146-4604
NIIN: 011464604
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings

General Description

The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-146-4604, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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	4720-01-146-4604
Item Name	Tubing,nonmetallic
FSC / FSG	4720 / 47 — Hose and Flexible Tubing
Status	ACTIVE
Measuring Method and Length	4.000 INCHES NOMINAL OVERALL IN
Flexibility	FLEXIBLE
Cross-Sectional Shape Style	ROUND
Outside Diameter	7.600 INCHES NOMINAL IN
Inside Diameter	7.350 INCHES NOMINAL IN
Inside Surface Condition	SMOOTH
Minimum Tensile Strength	1500 POUNDS PER SQUARE INCH LBS
Media for Which Designed	AIR SINGLE RESPONSE
Material	RUBBER SYNTHETIC TUBE
Nonmetallic Hardness Rating	50.0 MAXIMUM SHORE DUROMETER A

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 8

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

4720-01-146-48454675315-0F10 POSSIBLE MATCH

TUBING,NONMETALLIC

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-147-80314675145 POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

Possible match (shared part number)Naval Ship Systems Command

4720-01-161-64594675101-00F3 POSSIBLE MATCH

TUBING,NONMETALLIC

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-162-02854675275-0F10 POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-163-09414645499-0F10B POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-163-33504675230-00F4 POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-314-44944675187A-F314W POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

4730-01-314-449587643-2230 ITEM F-316 POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
4675606	D/9 Drawing number reference only U.S. Government activity
4675333-0F20	3/2 Design control — primary reference U.S. Government activity
4675333	D/9 Drawing number reference only U.S. Government activity

Related Parts

4720-01-146-4845POSSIBLE MATCH

TUBING,NONMETALLIC

4675315-0F10

4730-01-147-8031POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

4675145

4720-01-161-6459POSSIBLE MATCH

TUBING,NONMETALLIC

4675101-00F3

4730-01-162-0285POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

4675275-0F10

4730-01-163-0941POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

4645499-0F10B

4730-01-163-3350POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

4675230-00F4

4730-01-314-4494POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

4675187A-F314W

4730-01-314-4495POSSIBLE MATCH

SPACER,FLEXIBLE,PIPELINE

87643-2230 ITEM F-316

Frequently Asked Questions

What is NSN 4720-01-146-4604?

NSN 4720-01-146-4604 is a Tubing,nonmetallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.

What NSN replaces 4720-01-146-4604?

8 possible matches (shared part number, not a government interchangeability claim): 4720-01-146-4845, 4730-01-147-8031, 4720-01-161-6459. Verify interchangeability with system specifications before substitution.

What are the specifications of 4720-01-146-4604?

Key specifications for 4720-01-146-4604: Measuring Method and Length: 4.000 INCHES NOMINAL OVERALL IN; Flexibility: FLEXIBLE; Cross-Sectional Shape Style: ROUND; Outside Diameter: 7.600 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4720-01-146-4604 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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