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NSN 4720-01-450-5646Government record, cited
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Hose Assembly, Nonmetallic4720-01-450-5646

NSN 4720-01-450-5646 · NIIN 014505646 · Part number 6726420-16
Naval Sea Systems Command · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 53711
Government record, cited
NSN 4720-01-450-5646 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-450-5646. Manufacturer of record part number: 6726420-16.
Also searched as  4720-01-450-5646 · 4720014505646 · NIIN 014505646 · 01-450-5646 · FSC 4720 Hose and Flexible Tubing · CAGE 53711 · 6726420-16 · 211067213 · 211067213B · 6726420
Nearby stock numbers  ·
END VIEW L 25.0 FEET NOMINAL EXCLUDING END FITTINGS FT OD 1.587 INCHES MINIMUM IN PIPE CROSS SECTION
4720-01-450-5646 — Hose and Flexible Tubing
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Measuring Method and Length: 25.0 FEET NOMINAL EXCLUDING END FITTINGS FT
  • Temp Rating: 212.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Connection Style: BARBED OR SERRATED END FIRST END
  • Nominal Inside Diameter Hose Accommodated: 1.500 INCHES FIRST END IN
  • End Connection Design: STRAIGHT FIRST END
  • Layer Composition and Location: 1ST LAYER HELIX STEEL COIL AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
  • Connection Type: UNTHREADED EXTERNAL HOSE FIRST END
Identification
  • NSN: 4720-01-450-5646
  • NIIN: 014505646
  • FSC: 4720 — Hose and Flexible Tubing
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 6726420-16
  • Manufacturer: Naval Sea Systems Command
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-450-5646, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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
ParameterValue
NSN4720-01-450-5646
Primary Part Number6726420-16
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — Hose and Flexible Tubing
ManufacturerNaval Sea Systems Command
StatusACTIVE
Measuring Method and Length25.0 FEET NOMINAL EXCLUDING END FITTINGS FT
Temp Rating212.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection StyleBARBED OR SERRATED END FIRST END
Nominal Inside Diameter Hose Accommodated1.500 INCHES FIRST END IN
End Connection DesignSTRAIGHT FIRST END
Layer Composition and Location1ST LAYER HELIX STEEL COIL AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
Connection TypeUNTHREADED EXTERNAL HOSE FIRST END
Cross-Sectional Shape StyleROUND
Outside Diameter1.587 INCHES MINIMUM IN
Inside Diameter1.500 INCHES NOMINAL IN
Inside Surface ConditionSMOOTH
Media for Which DesignedWATER SINGLE RESPONSE
Hydrostatic Test Pressure100.0 POUNDS PER SQUARE INCH LBS
Burst Test Pressure300.0 POUNDS PER SQUARE INCH LBS
Outer Covering Environmental ProtectionOIL RESISTANT AND WEATHERPROOF
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4720-01-450-56596726420-18 POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Naval Sea Systems Command
4720-01-450-56726726420-19 POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Naval Sea Systems Command
4720-01-450-61216726420-39 POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Naval Sea Systems Command
4720-01-450-61316726420-41 POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Naval Sea Systems Command
4720-01-450-61376726420-38 POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Naval Sea Systems Command
4720-01-450-67256726420-ASSY97 POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Naval Sea Systems Command
4720-01-450-67306726420-17 POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
6726420-16 PRIMARY Naval Sea Systems Command (USA)
Reference documents
ReferenceMeaning
211067213 5/9 Secondary reference
U.S. Government activity
211067213B 5/2 Secondary reference
U.S. Government activity
6726420 D/9 Drawing number reference only
Naval Sea Systems Command
Related Parts
4720-01-450-5659POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
6726420-18
4720-01-450-5672POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
6726420-19
4720-01-450-6121POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
6726420-39
4720-01-450-6131POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
6726420-41
4720-01-450-6137POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
6726420-38
4720-01-450-6725POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
6726420-ASSY97
4720-01-450-6730POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
6726420-17

Frequently Asked Questions

What is NSN 4720-01-450-5646?

NSN 4720-01-450-5646 is a Hose Assembly,nonmetallic, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.

What part numbers are listed for NSN 4720-01-450-5646?

NSN 4720-01-450-5646 has 1 manufacturer part number on file: 6726420-16 (Naval Sea Systems Command).

What NSN replaces 4720-01-450-5646?

7 possible matches (shared part number, not a government interchangeability claim): 4720-01-450-5659, 4720-01-450-5672, 4720-01-450-6121. Verify interchangeability with system specifications before substitution.

What are the specifications of 6726420-16?

Key specifications for 6726420-16: Measuring Method and Length: 25.0 FEET NOMINAL EXCLUDING END FITTINGS FT; Temp Rating: 212.0 FAHRENHEIT SINGLE RESPONSE DEGF; Connection Style: BARBED OR SERRATED END FIRST END; Nominal Inside Diameter Hose Accommodated: 1.500 INCHES FIRST END IN. 15 specifications are documented in the U.S. Government catalog.

Is NSN 4720-01-450-5646 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.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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