PartsTable TECHNICAL DATA SHEET
NSN 4720-01-376-5646Government record, cited

Hose Assembly, Nonmetallic4720-01-376-5646

NSN 4720-01-376-5646 · NIIN 013765646 · Part number 6688968
Naval Sea Systems Command · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 53711
Government record, cited
NSN 4720-01-376-5646 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-376-5646. Manufacturer of record part number: 6688968.
Also searched as  4720-01-376-5646 · 4720013765646 · NIIN 013765646 · 01-376-5646 · FSC 4720 Hose and Flexible Tubing · CAGE 53711 · 6688968
Nearby stock numbers  ·
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Measuring Method and Length: 55.0 FEET NOMINAL OVERALL FT
  • Temp Rating: -65.0 FAHRENHEIT AND 165.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Minimum Inside Bending Radius: 4.000 INCHES IN
  • Connection Style: PUSH (INTERNAL) FIRST END
  • Connection Style: PUSH (EXTERNAL) SECOND END
  • End Connection Design: STRAIGHT FIRST END
  • End Connection Design: STRAIGHT SECOND END
Identification
  • NSN: 4720-01-376-5646
  • NIIN: 013765646
  • FSC: 4720 — Hose and Flexible Tubing
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 6688968
  • Manufacturer: Naval Sea Systems Command
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-376-5646, 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 19 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-376-5646
Primary Part Number6688968
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — Hose and Flexible Tubing
ManufacturerNaval Sea Systems Command
StatusACTIVE
Measuring Method and Length55.0 FEET NOMINAL OVERALL FT
Temp Rating-65.0 FAHRENHEIT AND 165.0 FAHRENHEIT SINGLE RESPONSE DEGF
Minimum Inside Bending Radius4.000 INCHES IN
Connection StylePUSH (INTERNAL) FIRST END
Connection StylePUSH (EXTERNAL) SECOND END
End Connection DesignSTRAIGHT FIRST END
End Connection DesignSTRAIGHT SECOND END
Layer Composition and Location1ST LAYER BRAIDED FIBER AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
Connection TypeEXTERNAL QUICK DISCONNECT SECOND END
Connection TypeINTERNAL QUICK DISCONNECT FIRST END
Cross-Sectional Shape StyleROUND
Outside Diameter0.600 INCHES NOMINAL IN
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
Quick Disconnect Nominal Size0.375 INCHES SECOND END IN
Quick Disconnect Nominal Size0.375 INCHES FIRST END IN
Inside Diameter0.375 INCHES NOMINAL IN
Inside Surface ConditionSMOOTH
Hydrostatic Test Pressure300.0 POUNDS PER SQUARE INCH LBS
Burst Test Pressure1000.0 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
6688968 PRIMARY Naval Sea Systems Command (USA)
No interchangeability data on file.
Other items in FSC 4720 — Hose and Flexible Tubing
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4720-00-000-0080
HOSE ASSEMBLY,NONMETALLIC
4720-00-000-0081
4720-00-000-0081 · Item name not on file
4720-00-000-0084
HOSE,PREFORMED
4720-00-000-0724
4720-00-000-0724 · Item name not on file
4720-00-001-0014
HOSE ASSEMBLY,NONMETALLIC
4720-00-001-0015
4720-00-001-0015 · Item name not on file
4720-00-001-0023
HOSE ASSEMBLY,NONMETALLIC
4720-00-001-0025
4720-00-001-0025 · Item name not on file

Frequently Asked Questions

What is NSN 4720-01-376-5646?

NSN 4720-01-376-5646 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 4720-01-376-5646?

NSN 4720-01-376-5646 has 1 manufacturer part number on file: 6688968 (Naval Sea Systems Command).

What are the specifications of 6688968?

Key specifications for 6688968: Measuring Method and Length: 55.0 FEET NOMINAL OVERALL FT; Temp Rating: -65.0 FAHRENHEIT AND 165.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 4.000 INCHES IN; Connection Style: PUSH (INTERNAL) FIRST END. 19 specifications are documented in the U.S. Government catalog.

Is NSN 4720-01-376-5646 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.

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