PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS5406D08Adapter,straight,tube to Boss

Sae International Dba Sae International · NSN 4730-00-277-6439 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-277-6439 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-277-6439. Primary manufacturer part number: AS5406D08.
Features
  • Adapter,straight,tube to Boss — FSC 4730
  • Thread Class: 3A CENTER BULKHEAD A
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) CENTER BULKHEAD
  • Connection Style: FLARED W/ GASKET SEAL (BOSS) SECOND END
  • Connection Type: THREADED EXTERNAL BOSS SECOND END
  • Nominal Overall Length: 2.453 INCHES IN
  • Surface Treatment: ANODIZE OVERALL
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
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 4730-00-277-6439, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-277-6439
Primary Part NumberAS5406D08
Item NameAdapter,straight,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Thread Class3A CENTER BULKHEAD A
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) CENTER BULKHEAD
Connection StyleFLARED W/ GASKET SEAL (BOSS) SECOND END
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Nominal Overall Length2.453 INCHES IN
Surface TreatmentANODIZE OVERALL
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
MaterialALUMINUM ALLOY OVERALL
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Specification/standard Data81343-AS4841 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nominal Thread Size0.750 INCHES ALL ENDS IN
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Nominal Thread Size0.750 INCHES CENTER BULKHEAD IN
Connection StyleFLARED (TUBE) FIRST END
Thread Class3A ALL ENDS A
Seat Angle37.0 DEGREES FIRST END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4730-00-287-0288 INTERCHANGEABLE
Nut,tube Coupling
Cross-Reference Index
Part NumberManufacturer
Z00.N7730062094 Daher Aerospace - Ex Socata (FRA)
3110119 Embraer S.a. (BRA)
AS4841 Sae International Dba Sae International (USA)
AS4841 Society of Automotive Engineers Inc (USA)
AS5406 Society of Automotive Engineers Inc (USA)
AN793-4 Aeronautical Standards Group Dept of Navy and Air Force (USA)
TF-AC-024 Aero Tec Laboratories Ltd (GBR)
3110119 Embraer Aviation International (FRA)
AS5406D08 Leonardo Spa Helicopters Division - Production Site (ITA)
AS5406 Sae International Dba Sae International (USA)
AS5406D08 Society of Automotive Engineers Inc (USA)
SAE-AS4841 Sae International Dba Sae International (USA)
AN832-8D Skf Aerospace France (FRA)
AS5406D08 PRIMARY Sae International Dba Sae International (USA)
AN832-8D Aeronautical Standards Group Dept of Navy and Air Force (USA)
MIL-F-5509 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
3110119 Embraer Empresa Brasileira De Aeronautica Sa (BRA)
4730PL2091348 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
4730-00-287-0288INTERCHANGEABLE
NUT,TUBE COUPLING

Frequently Asked Questions

What is NSN 4730-00-277-6439?

NSN 4730-00-277-6439 is a Adapter,straight,tube to Boss, manufactured by Sae International Dba Sae International, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-277-6439?

NSN 4730-00-277-6439 has 18 cross-referenced part numbers: Z00.N7730062094 (Daher Aerospace - Ex Socata), 3110119 (Embraer S.a.), AS4841 (Sae International Dba Sae International), AS4841 (Society of Automotive Engineers Inc), AS5406 (Society of Automotive Engineers Inc) and 13 more.

What NSN replaces 4730-00-277-6439?

There is 1 known substitute for 4730-00-277-6439: 4730-00-287-0288. Verify interchangeability with system specifications before substitution.

What are the specifications of AS5406D08?

Key specifications for AS5406D08: Thread Class: 3A CENTER BULKHEAD A; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) CENTER BULKHEAD; Connection Style: FLARED W/ GASKET SEAL (BOSS) SECOND END; Connection Type: THREADED EXTERNAL BOSS SECOND END. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-277-6439 still in active supply?

NSN 4730-00-277-6439 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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