PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66787Hose Assembly,metallic

Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division · NSN 4720-00-320-3350 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-320-3350 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-320-3350. Primary manufacturer part number: 66787.
Features
  • Hose Assembly,metallic — FSC 4720
  • End Connection Design: ELBOW SECOND END
  • Flow Angle: 45.0 DEGREES SECOND END
  • Thread Class: 3B SECOND END
  • Outer Covering Environmental Protection: CORROSION RESISTANT
  • Temp Rating: -54.0 CELSIUS AND 125.0 CELSIUS SINGLE RESPONSE DEGC
  • Inside Diameter: 0.188 INCHES NOMINAL IN
  • Nominal Thread Size: 0.375 INCHES SECOND END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,metallic, cataloged under National Stock Number 4720-00-320-3350, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-00-320-3350
Primary Part Number66787
Item NameHose Assembly,metallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerParker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
StatusACTIVE
End Connection DesignELBOW SECOND END
Flow Angle45.0 DEGREES SECOND END
Thread Class3B SECOND END
Outer Covering Environmental ProtectionCORROSION RESISTANT
Temp Rating-54.0 CELSIUS AND 125.0 CELSIUS SINGLE RESPONSE DEGC
Inside Diameter0.188 INCHES NOMINAL IN
Nominal Thread Size0.375 INCHES SECOND END IN
Connection TypeTHREADED INTERNAL TUBE SECOND END
Exterior ColorNATURAL
Measuring Method and Length13.000 INCHES NOMINAL WORKING IN
Thread Series DesignatorUNF SECOND END
Thread Class3B FIRST END
Thread DirectionRIGHT-HAND FIRST END
Connection StyleSWIVEL NUT FLARE SECOND END
Layer Composition and LocationOUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE
Nominal Thread Size0.375 INCHES FIRST END IN
Hydrostatic Test Pressure150.0 POUNDS PER SQUARE INCH LBS
Thread DirectionRIGHT-HAND SECOND END
Thread Series DesignatorUNF FIRST END
Seat Angle37.0 DEGREES SECOND END
Outside Diameter0.312 INCHES NOMINAL IN
Cross-Sectional Shape StyleROUND
Connection StyleSWIVEL NUT FLARE FIRST END
Seat Angle37.0 DEGREES FIRST END
End Connection DesignSTRAIGHT FIRST END
Connection TypeTHREADED INTERNAL TUBE FIRST END
Inner Conveying Tube StyleANNULAR CLOSE-PITCH CORRUGATED
Minimum Inside Bending Radius2.000 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-171-368127134 INTERCHANGEABLE
Gasket
Briggs and Stratton Corp
5945-00-553-9365735560-4REVA INTERCHANGEABLE
Relay,electromagnetic
Lockheed Martin Corporation Div Rms - Mitchel Field
Cross-Reference Index
Part NumberManufacturer
373271-1 Raytheon Company Dba Raytheon Co (USA)
90637 Coast Metal Craft, Inc. (USA)
90637 C-Tek Industries, Inc Dba C-Tek Industries Inc (USA)
66787 PRIMARY Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
373271-1 Raytheon Company Div Corp (USA)
66787 Senior Flexonics Inc (USA)
Related Parts
5330-00-171-3681INTERCHANGEABLE
GASKET
27134
5945-00-553-9365INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
735560-4REVA

Frequently Asked Questions

What is NSN 4720-00-320-3350?

NSN 4720-00-320-3350 is a Hose Assembly,metallic, manufactured by Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-00-320-3350?

NSN 4720-00-320-3350 has 6 cross-referenced part numbers: 373271-1 (Raytheon Company Dba Raytheon Co), 90637 (Coast Metal Craft, Inc.), 90637 (C-Tek Industries, Inc Dba C-Tek Industries Inc), 66787 (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), 373271-1 (Raytheon Company Div Corp) and 1 more.

What NSN replaces 4720-00-320-3350?

There are 2 known substitutes for 4720-00-320-3350: 5330-00-171-3681, 5945-00-553-9365. Verify interchangeability with system specifications before substitution.

What are the specifications of 66787?

Key specifications for 66787: End Connection Design: ELBOW SECOND END; Flow Angle: 45.0 DEGREES SECOND END; Thread Class: 3B SECOND END; Outer Covering Environmental Protection: CORROSION RESISTANT. 28 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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