PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25259Tube Assembly,metal

Williams International Co., L.l.c. · NSN 4710-01-014-3902 · FSC 4710 · No Item Name Available
Verified by PartsTable
NSN 4710-01-014-3902 — this item is cataloged by the U.S. Government under National Stock Number 4710-01-014-3902. Primary manufacturer part number: 25259.
Features
  • Tube Assembly,metal — FSC 4710
  • Mating End Quantity: 2 SINGLE END
  • Material: STEEL CORROSION RESISTING TUBING
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END
  • Seat Angle in Deg: 33.0 SINGLE END
  • Tube Outside Diameter: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
  • Design Form: PREBENT
  • Wall Thickness: 0.018 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Corrosion Resisting Tubing construction
General Description

The Tube Assembly,metal, cataloged under National Stock Number 4710-01-014-3902, 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 Williams International Co., L.l.c.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4710-01-014-3902
Primary Part Number25259
Item NameTube Assembly,metal
FSC / FSG4710 / 47 — No Item Name Available
ManufacturerWilliams International Co., L.l.c.
StatusACTIVE
Mating End Quantity2 SINGLE END
MaterialSTEEL CORROSION RESISTING TUBING
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END
Seat Angle in Deg33.0 SINGLE END
Tube Outside Diameter0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
Design FormPREBENT
Wall Thickness0.018 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
MaterialSTEEL CORROSION RESISTING SINGLE END
End Connection Spec/stdMIL,@MS20819,PART NO. MS 20819-4K AND AN818,PART NO. AN818-4K
End Connection StyleSWIVEL NUT, FLARED SINGLE END
Thread DirectionRIGHT-HAND SINGLE END
Thread Class3B SINGLE END
Nominal Thread Size0.438 INCHES SINGLE END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-187-1528 INTERCHANGEABLE
Gasket
5133-00-228-1412 INTERCHANGEABLE
Drill,twist
5307-00-514-68345223825 INTERCHANGEABLE
Stud,shouldered
Army, United States Department of the Dba Rock Island Arsenal Jmtc
5330-00-528-280725259 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5310-00-596-7155AA7FA229 INTERCHANGEABLE
Nut,self-Locking,wing
Renk America Llc Div Renk America
1560-00-706-285225259 INTERCHANGEABLE
Clamp,hydraulic Accumulator
Northrop Grumman Systems Corporation
5365-00-730-346525259 INTERCHANGEABLE
Spacer,ring
Raytheon Company Dba Raytheon
3120-00-956-8442 INTERCHANGEABLE
Bearing,sleeve
5331-01-219-399325261 INTERCHANGEABLE
O-Ring
Twg Canada Consolidated Inc
5330-01-289-3175 INTERCHANGEABLE
Retainer,packing
Cross-Reference Index
Part NumberManufacturer
25261 Williams International Co., L.l.c. (USA)
25259 PRIMARY Williams International Co., L.l.c. (USA)
Related Parts
5330-00-187-1528INTERCHANGEABLE
GASKET
5133-00-228-1412INTERCHANGEABLE
DRILL,TWIST
5307-00-514-6834INTERCHANGEABLE
STUD,SHOULDERED
5223825
5330-00-528-2807INTERCHANGEABLE
GASKET
25259
5310-00-596-7155INTERCHANGEABLE
NUT,SELF-LOCKING,WING
AA7FA229
1560-00-706-2852INTERCHANGEABLE
CLAMP,HYDRAULIC ACCUMULATOR
25259
5365-00-730-3465INTERCHANGEABLE
SPACER,RING
25259
3120-00-956-8442INTERCHANGEABLE
BEARING,SLEEVE
5331-01-219-3993INTERCHANGEABLE
O-RING
25261
5330-01-289-3175INTERCHANGEABLE
RETAINER,PACKING
5310-01-565-2562INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
25261
5120-01-675-9948INTERCHANGEABLE
PIN,SLEDGE ATTACHMENT
25261

Frequently Asked Questions

What is NSN 4710-01-014-3902?

NSN 4710-01-014-3902 is a Tube Assembly,metal, manufactured by Williams International Co., L.l.c., classified under FSC 4710 (No Item Name Available). Status: active.

What are the part numbers for NSN 4710-01-014-3902?

NSN 4710-01-014-3902 has 2 cross-referenced part numbers: 25261 (Williams International Co., L.l.c.), 25259 (Williams International Co., L.l.c.).

What NSN replaces 4710-01-014-3902?

There are 12 known substitutes for 4710-01-014-3902: 5330-00-187-1528, 5133-00-228-1412, 5307-00-514-6834 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25259?

Key specifications for 25259: Mating End Quantity: 2 SINGLE END; Material: STEEL CORROSION RESISTING TUBING; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END; Seat Angle in Deg: 33.0 SINGLE END. 13 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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