PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

725611Adapter,straight,tube to Boss

Lockheed Martin Corp · NSN 4730-00-025-5492 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-025-5492 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-025-5492. Primary manufacturer part number: 725611.
Features
  • Adapter,straight,tube to Boss — FSC 4730
  • Thread Series Designator: UN FIRST END
  • Nominal Outside Diameter Tube Accommodated: 1.250 INCHES FIRST END IN
  • Thread Class: 3A FIRST END A
  • Nominal Thread Size: 1.500 INCHES SECOND END IN
  • Thread Quantity Per Inch: 12 FIRST END
  • Reduced Passage Nominal Inside Diameter: 1.078 INCHES SECOND END IN
  • Material: ALUMINUM ALLOY OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-00-025-5492, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Lockheed Martin Corp. 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
NSN4730-00-025-5492
Primary Part Number725611
Item NameAdapter,straight,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Thread Series DesignatorUN FIRST END
Nominal Outside Diameter Tube Accommodated1.250 INCHES FIRST END IN
Thread Class3A FIRST END A
Nominal Thread Size1.500 INCHES SECOND END IN
Thread Quantity Per Inch12 FIRST END
Reduced Passage Nominal Inside Diameter1.078 INCHES SECOND END IN
MaterialALUMINUM ALLOY OVERALL
Nominal Thread Size1.625 INCHES FIRST END IN
Nominal Overall Length3.820 INCHES IN
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) SECOND END
Seat Angle37.0 DEGREES FIRST END
Connection StyleFLARED (TUBE) FIRST END
Connection StyleGASKET SEAL (BOSS) SECOND END
Thread Class3B SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3030-00-528-4612 INTERCHANGEABLE
Belt,v
Cross-Reference Index
Part NumberManufacturer
725611 PRIMARY Lockheed Martin Corp (USA)
Related Parts
3030-00-528-4612INTERCHANGEABLE
BELT,V

Frequently Asked Questions

What is NSN 4730-00-025-5492?

NSN 4730-00-025-5492 is a Adapter,straight,tube to Boss, manufactured by Lockheed Martin Corp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-025-5492?

NSN 4730-00-025-5492 has 1 cross-referenced part number: 725611 (Lockheed Martin Corp).

What NSN replaces 4730-00-025-5492?

There is 1 known substitute for 4730-00-025-5492: 3030-00-528-4612. Verify interchangeability with system specifications before substitution.

What are the specifications of 725611?

Key specifications for 725611: Thread Series Designator: UN FIRST END; Nominal Outside Diameter Tube Accommodated: 1.250 INCHES FIRST END IN; Thread Class: 3A FIRST END A; Nominal Thread Size: 1.500 INCHES SECOND 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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