PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41B1944-276Tube Assembly,metal

Alamo Aircraft, Ltd. · NSN 4710-00-118-8446 · FSC 4710 · No Item Name Available
Verified by PartsTable
NSN 4710-00-118-8446 — this item is cataloged by the U.S. Government under National Stock Number 4710-00-118-8446. Primary manufacturer part number: 41B1944-276.
Features
  • Tube Assembly,metal — FSC 4710
  • End Connection Spec/std: AN,AN805,PART NO. AN805-2 AND AN,AN800,PART NO. AN800C2
  • Design Form: PREBENT
  • Material: COPPER ALLOY SINGLE END
  • Material Document and Classification: AMS 4574 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4575 ASSN STD SINGLE MATERIAL RESPONSE TUBING
  • Nominal Thread Size: 0.312 INCHES SINGLE END IN
  • Seat Radius: 0.141 INCHES NOMINAL SINGLE END IN
  • Tube Outside Diameter: 0.124 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Single End construction
General Description

The Tube Assembly,metal, cataloged under National Stock Number 4710-00-118-8446, 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 Alamo Aircraft, Ltd.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4710-00-118-8446
Primary Part Number41B1944-276
Item NameTube Assembly,metal
FSC / FSG4710 / 47 — No Item Name Available
ManufacturerAlamo Aircraft, Ltd.
StatusCANCELLED
End Connection Spec/stdAN,AN805,PART NO. AN805-2 AND AN,AN800,PART NO. AN800C2
Design FormPREBENT
MaterialCOPPER ALLOY SINGLE END
Material Document and ClassificationAMS 4574 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4575 ASSN STD SINGLE MATERIAL RESPONSE TUBING
Nominal Thread Size0.312 INCHES SINGLE END IN
Seat Radius0.141 INCHES NOMINAL SINGLE END IN
Tube Outside Diameter0.124 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
MaterialNICKEL ALLOY 400 OR NICKEL ALLOY 400 TUBING
Thread Pitch Diameters+0.292 TO 0.294 INCHES SINGLE END IN
Mating End Quantity2 SINGLE END
Thread Class3B SINGLE END
Thread Series DesignatorUNJEF SINGLE END
End Connection StyleSWIVEL NUT, INVERTED FLARE SINGLE END
Wall Thickness0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5330-00-171-931012514 INTERCHANGEABLE
Seal,plain Encased
Garwood/feller Inc Garwood Winch Div
5365-01-281-841643894 INTERCHANGEABLE
Shim
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
43894 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
41B1944-276 PRIMARY Alamo Aircraft, Ltd. (USA)
41B1944-276 Department of the Air Force (USA)
41B1944-275 Department of the Air Force (USA)
Related Parts
5330-00-171-9310INTERCHANGEABLE
SEAL,PLAIN ENCASED
12514
5365-01-281-8416INTERCHANGEABLE
SHIM
43894

Frequently Asked Questions

What is NSN 4710-00-118-8446?

NSN 4710-00-118-8446 is a Tube Assembly,metal, manufactured by Alamo Aircraft, Ltd., classified under FSC 4710 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4710-00-118-8446?

NSN 4710-00-118-8446 has 4 cross-referenced part numbers: 43894 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 41B1944-276 (Alamo Aircraft, Ltd.), 41B1944-276 (Department of the Air Force), 41B1944-275 (Department of the Air Force).

What NSN replaces 4710-00-118-8446?

There are 2 known substitutes for 4710-00-118-8446: 5330-00-171-9310, 5365-01-281-8416. Verify interchangeability with system specifications before substitution.

What are the specifications of 41B1944-276?

Key specifications for 41B1944-276: End Connection Spec/std: AN,AN805,PART NO. AN805-2 AND AN,AN800,PART NO. AN800C2; Design Form: PREBENT; Material: COPPER ALLOY SINGLE END; Material Document and Classification: AMS 4574 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4575 ASSN STD SINGLE MATERIAL RESPONSE TUBING. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4710-00-118-8446 still in active supply?

NSN 4710-00-118-8446 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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