PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

254497Tube Assembly,metal

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 4710-00-303-9356 · FSC 4710 · No Item Name Available
Verified by PartsTable
NSN 4710-00-303-9356 — this item is cataloged by the U.S. Government under National Stock Number 4710-00-303-9356. Primary manufacturer part number: 254497.
Features
  • Tube Assembly,metal — FSC 4710
  • Wall Thickness: 0.049 INCHES NOMINAL IN
  • Tube Outside Diameter: 1.250 INCHES NOMINAL IN
  • Design Form: PREBENT
  • Nominal Thread Size: 1.750 INCHES SINGLE END IN
  • Material: ALUMINUM ALLOY 2024 SINGLE END
  • End Connection Style: FLARE SINGLE END
  • Material: STEEL COMP 321 TUBING
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy 2024 Single End construction
General Description

The Tube Assembly,metal, cataloged under National Stock Number 4710-00-303-9356, is classified within Federal Supply Class 4710 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4710-00-303-9356
Primary Part Number254497
Item NameTube Assembly,metal
FSC / FSG4710 / 47 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Wall Thickness0.049 INCHES NOMINAL IN
Tube Outside Diameter1.250 INCHES NOMINAL IN
Design FormPREBENT
Nominal Thread Size1.750 INCHES SINGLE END IN
MaterialALUMINUM ALLOY 2024 SINGLE END
End Connection StyleFLARE SINGLE END
MaterialSTEEL COMP 321 TUBING
Thread DirectionRIGHT-HAND SINGLE END
Thread Series DesignatorUNIFIED NATIONAL JOINT (UNJ) SINGLE END
Material Document and ClassificationAMS 5570 ASSN STD SINGLE MATERIAL RESPONSE TUBING
Thread Class3B SINGLE END
Mating End Quantity2 SINGLE END
Material Document and ClassificationAMS 4120 ASSN STD SINGLE MATERIAL RESPONSE SINGLE END
Seat Angle in Deg45.0 SINGLE END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5365-01-492-639425449-7 INTERCHANGEABLE
Shim
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
Cross-Reference Index
Part NumberManufacturer
254497 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5365-01-492-6394INTERCHANGEABLE
SHIM
25449-7

Frequently Asked Questions

What is NSN 4710-00-303-9356?

NSN 4710-00-303-9356 is a Tube Assembly,metal, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4710 (No Item Name Available). Status: active.

What are the part numbers for NSN 4710-00-303-9356?

NSN 4710-00-303-9356 has 1 cross-referenced part number: 254497 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 4710-00-303-9356?

There is 1 known substitute for 4710-00-303-9356: 5365-01-492-6394. Verify interchangeability with system specifications before substitution.

What are the specifications of 254497?

Key specifications for 254497: Wall Thickness: 0.049 INCHES NOMINAL IN; Tube Outside Diameter: 1.250 INCHES NOMINAL IN; Design Form: PREBENT; Nominal Thread Size: 1.750 INCHES SINGLE END IN. 14 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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