PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-B6568Hose Assembly,nonmetallic

Royal Technology Corporation Dba Royal Technology Corportation · NSN 4720-00-241-7660 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-241-7660 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-241-7660. Primary manufacturer part number: A-B6568.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Measuring Method and Length: 120.000 INCHES NOMINAL OVERALL IN
  • Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
  • Operating Pressure: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
  • Hydrostatic Test Pressure: 8000.0 POUNDS PER SQUARE INCH LBS
  • Thread Series Designator: NPT FIRST END
  • Inside Surface Condition: SMOOTH
  • Nominal Thread Size: 0.375 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-241-7660, 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 Royal Technology Corporation Dba Royal Technology Corportation. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-00-241-7660
Primary Part NumberA-B6568
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerRoyal Technology Corporation Dba Royal Technology Corportation
StatusACTIVE
Measuring Method and Length120.000 INCHES NOMINAL OVERALL IN
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Operating Pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
Hydrostatic Test Pressure8000.0 POUNDS PER SQUARE INCH LBS
Thread Series DesignatorNPT FIRST END
Inside Surface ConditionSMOOTH
Nominal Thread Size0.375 INCHES FIRST END IN
Thread DirectionRIGHT-HAND FIRST END
Connection StylePLAIN FIRST END
Burst Test Pressure16000.0 POUNDS PER SQUARE INCH LBS
Minimum Inside Bending Radius5.000 INCHES IN
Layer Composition and Location2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC AND 1ST LAYER BRAIDED STEEL WIRE
End Connection DesignSTRAIGHT FIRST END
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Inside Diameter0.375 INCHES NOMINAL IN
Outside Diameter0.812 INCHES NOMINAL IN
Cross-Sectional Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4720-00-618-8290 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cross-Reference Index
Part NumberManufacturer
A-B6568 PRIMARY Royal Technology Corporation Dba Royal Technology Corportation (USA)
49B6568-1 PRIMARY Columbus Jack Corporation Div Columbus Jack (USA)
Related Parts
4720-00-618-8290INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC

Frequently Asked Questions

What is NSN 4720-00-241-7660?

NSN 4720-00-241-7660 is a Hose Assembly,nonmetallic, manufactured by Royal Technology Corporation Dba Royal Technology Corportation, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-00-241-7660?

NSN 4720-00-241-7660 has 2 cross-referenced part numbers: A-B6568 (Royal Technology Corporation Dba Royal Technology Corportation), 49B6568-1 (Columbus Jack Corporation Div Columbus Jack).

What NSN replaces 4720-00-241-7660?

There is 1 known substitute for 4720-00-241-7660: 4720-00-618-8290. Verify interchangeability with system specifications before substitution.

What are the specifications of A-B6568?

Key specifications for A-B6568: Measuring Method and Length: 120.000 INCHES NOMINAL OVERALL IN; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; Operating Pressure: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS; Hydrostatic Test Pressure: 8000.0 POUNDS PER SQUARE INCH LBS. 17 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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