PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS5406-3Adapter,straight,tube to Boss

Sae International Dba Sae International · NSN 4730-01-391-4487 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-391-4487 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-391-4487. Primary manufacturer part number: AS5406-3.
Features
  • Adapter,straight,tube to Boss — FSC 4730
  • Surface Treatment: PASSIVATE OVERALL
  • Seat Angle: 37.0 DEGREES FIRST END
  • Thread Tolerance Class: 3A EXTERNAL ALL ENDS A
  • Specification/standard Data: 88044-AN832 GOVERNMENT STANDARD AND 81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Connection Style: FLARED (TUBE) FIRST END
  • Nominal Thread Size: 0.375 INCHES ALL ENDS IN
  • Thread Class: 3A ALL ENDS A
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-01-391-4487, 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 Sae International Dba Sae International. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 4 manufacturers, 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
NSN4730-01-391-4487
Primary Part NumberAS5406-3
Item NameAdapter,straight,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
Surface TreatmentPASSIVATE OVERALL
Seat Angle37.0 DEGREES FIRST END
Thread Tolerance Class3A EXTERNAL ALL ENDS A
Specification/standard Data88044-AN832 GOVERNMENT STANDARD AND 81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Connection StyleFLARED (TUBE) FIRST END
Nominal Thread Size0.375 INCHES ALL ENDS IN
Thread Class3A ALL ENDS A
Thread Class3A CENTER BULKHEAD A
Nominal Outside Diameter Tube Accommodated0.188 INCHES FIRST END IN
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
MaterialSTEEL OVERALL
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) CENTER BULKHEAD
Connection StyleFLARED W/ GASKET SEAL (BOSS) SECOND END
Nominal Thread Size0.375 INCHES CENTER BULKHEAD IN
Nominal Overall Length1.859 INCHES IN
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5940-01-489-0359A85 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
Cross-Reference Index
Part NumberManufacturer
AS5406 Society of Automotive Engineers Inc (USA)
SAE-AS4841 Sae International Dba Sae International (USA)
AS4841 Society of Automotive Engineers Inc (USA)
AN832-3 Aeronautical Standards Group Dept of Navy and Air Force (USA)
AS4841 Sae International Dba Sae International (USA)
AS5406-3 Society of Automotive Engineers Inc (USA)
MIL-F-5509 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AS5406 Sae International Dba Sae International (USA)
AS5406-3 PRIMARY Sae International Dba Sae International (USA)
Related Parts
5940-01-489-0359INTERCHANGEABLE
TERMINAL,LUG
A85

Frequently Asked Questions

What is NSN 4730-01-391-4487?

NSN 4730-01-391-4487 is a Adapter,straight,tube to Boss, manufactured by Sae International Dba Sae International, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-391-4487?

NSN 4730-01-391-4487 has 9 cross-referenced part numbers: AS5406 (Society of Automotive Engineers Inc), SAE-AS4841 (Sae International Dba Sae International), AS4841 (Society of Automotive Engineers Inc), AN832-3 (Aeronautical Standards Group Dept of Navy and Air Force), AS4841 (Sae International Dba Sae International) and 4 more.

What NSN replaces 4730-01-391-4487?

There is 1 known substitute for 4730-01-391-4487: 5940-01-489-0359. Verify interchangeability with system specifications before substitution.

What are the specifications of AS5406-3?

Key specifications for AS5406-3: Surface Treatment: PASSIVATE OVERALL; Seat Angle: 37.0 DEGREES FIRST END; Thread Tolerance Class: 3A EXTERNAL ALL ENDS A; Specification/standard Data: 88044-AN832 GOVERNMENT STANDARD AND 81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 17 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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