PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3305277Hose Assembly,nonmetallic

Hatch & Kirk, Inc. · NSN 4720-00-203-2526 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-203-2526 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-203-2526. Primary manufacturer part number: 3305277.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Connection Style: INVERTED FLARE FIRST END
  • Thread Direction: RIGHT-HAND FIRST END
  • Operating Pressure: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Layer Composition and Location: 2ND LAYER BRAIDED RAYON CORD AND OUTER LAYER MOLDED RUBBER, SYNTHETIC AND 1ST LAYER BRAIDED RAYON CORD
  • Temp Rating: -65.0 FAHRENHEIT AND 235.0 FAHRENHEIT SINGLE RESPONSE DEGF
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-203-2526, 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 Hatch & Kirk, Inc.. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4720-00-203-2526
Primary Part Number3305277
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerHatch & Kirk, Inc.
StatusCANCELLED
Connection StyleINVERTED FLARE FIRST END
Thread DirectionRIGHT-HAND FIRST END
Operating Pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Layer Composition and Location2ND LAYER BRAIDED RAYON CORD AND OUTER LAYER MOLDED RUBBER, SYNTHETIC AND 1ST LAYER BRAIDED RAYON CORD
Temp Rating-65.0 FAHRENHEIT AND 235.0 FAHRENHEIT SINGLE RESPONSE DEGF
Thread Series DesignatorNPT FIRST END
Thread Series DesignatorNPT SECOND END
Outer Covering Environmental ProtectionOIL RESISTANT AND GREASE RESISTANT
Nominal Thread Size0.250 INCHES SECOND END IN
Nominal Thread Size0.250 INCHES SECOND END IN
Burst Test Pressure2000.0 POUNDS PER SQUARE INCH LBS
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Thread Series DesignatorNPT FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Connection StyleSWIVEL, PLAIN SECOND END
End Connection DesignSTRAIGHT FIRST END
Inside Diameter0.188 INCHES NOMINAL IN
Thread Series DesignatorNPT SECOND END
Nominal Thread Size0.250 INCHES FIRST END IN
Nominal Thread Size0.250 INCHES FIRST END IN
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Cross-Sectional Shape StyleROUND
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Operating Pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
Outer Covering Environmental ProtectionOIL RESISTANT AND GREASE RESISTANT
Inside Surface ConditionSMOOTH
Seat Angle37.0 DEGREES FIRST END
Measuring Method and Length12.500 INCHES NOMINAL OVERALL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
4820-01-127-67798530-5 INTERCHANGEABLE
Stem,fluid Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-128-2257E8530E41B INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-130-5380E8530H41B INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
3305277 PRIMARY Hatch & Kirk, Inc. (USA)
3306055 Hatch & Kirk, Inc. (USA)
3305277 General Motors Corp Electro-Motive Div (USA)
Related Parts
4820-01-127-6779INTERCHANGEABLE
STEM,FLUID VALVE
8530-5
4820-01-128-2257INTERCHANGEABLE
VALVE,SAFETY RELIEF
E8530E41B
4820-01-130-5380INTERCHANGEABLE
VALVE,SAFETY RELIEF
E8530H41B

Frequently Asked Questions

What is NSN 4720-00-203-2526?

NSN 4720-00-203-2526 is a Hose Assembly,nonmetallic, manufactured by Hatch & Kirk, Inc., classified under FSC 4720 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4720-00-203-2526?

NSN 4720-00-203-2526 has 3 cross-referenced part numbers: 3305277 (Hatch & Kirk, Inc.), 3306055 (Hatch & Kirk, Inc.), 3305277 (General Motors Corp Electro-Motive Div).

What NSN replaces 4720-00-203-2526?

There are 3 known substitutes for 4720-00-203-2526: 4820-01-127-6779, 4820-01-128-2257, 4820-01-130-5380. Verify interchangeability with system specifications before substitution.

What are the specifications of 3305277?

Key specifications for 3305277: Connection Style: INVERTED FLARE FIRST END; Thread Direction: RIGHT-HAND FIRST END; Operating Pressure: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS; Connection Type: THREADED EXTERNAL PIPE SECOND END. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4720-00-203-2526 still in active supply?

NSN 4720-00-203-2526 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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