PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS5406-04Adapter,straight,tube to Boss

Sae International Dba Sae International · NSN 4730-00-720-0987 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-720-0987 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-720-0987. Primary manufacturer part number: AS5406-04.
Features
  • Adapter,straight,tube to Boss — FSC 4730
  • Nominal Thread Size: 0.438 INCHES CENTER BULKHEAD IN
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) CENTER BULKHEAD
  • Connection Type: THREADED EXTERNAL TUBE ALL ENDS
  • Criticality Code Justification: FEAT
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES ALL ENDS IN
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
  • Surface Treatment: CADMIUM OVERALL
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 4730-00-720-0987, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 26 commercial cross-references from 18 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-720-0987
Primary Part NumberAS5406-04
Item NameAdapter,straight,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Nominal Thread Size0.438 INCHES CENTER BULKHEAD IN
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) CENTER BULKHEAD
Connection TypeTHREADED EXTERNAL TUBE ALL ENDS
Criticality Code JustificationFEAT
Nominal Outside Diameter Tube Accommodated0.250 INCHES ALL ENDS IN
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
Surface TreatmentCADMIUM OVERALL
MaterialSTEEL OVERALL
Operating Pressure3000.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size0.438 INCHES ALL ENDS IN
Specification/standard Data96906-MS24393 GOVERNMENT STANDARD
Style DesignatorFLARED W/ BULKHEAD THREAD
Seat Angle37.0 DEGREES FIRST END
Nominal Overall Length2.047 INCHES IN
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END BULKHEAD IN
Thread Class3A ALL ENDS A
Connection StyleFLARED (TUBE) ALL ENDS
Thread Class3A CENTER BULKHEAD A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5120-00-223-95581204-3 INTERCHANGEABLE
Extractor,stuffing Box and Pump
C. S. Osborne and Company Dba Cs Osborne & Co
4730-00-385-7885 INTERCHANGEABLE
Nipple,tube
5305-00-958-788258324 INTERCHANGEABLE
Setscrew
Hydro-Aire Aerospace Corp
4730-01-011-6192AS5406J04 INTERCHANGEABLE
Adapter,straight,tube to Boss
Sae International Dba Sae International
5950-01-050-2635 INTERCHANGEABLE
Transformer,power
Cross-Reference Index
Part NumberManufacturer
A51A88 Surface Combustion Inc (USA)
8611847-1 Warner Robins Air Logistics Center (USA)
MS24393-4 Crown Fitting Co Inc (USA)
5832-4 Dana Corp Weatherhead Div (USA)
C5325X4 Dana Corp Weatherhead Div (USA)
MS24393-4 Hydro-Fitting Manufacturing Corporation (USA)
9403252 General Motors Corp AC-Delco Div Government Order Dept (USA)
AN828-4 Aeronautical Standards Group Dept of Navy and Air Force (USA)
7205738P1 Lockheed Martin Corporation Div Rms (USA)
SAE-AS4841 Sae International Dba Sae International (USA)
5325X4 Dana Corp Weatherhead Div (USA)
81348MIL-F-5509 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
4730007200987 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
AS5406-04 Society of Automotive Engineers Inc (USA)
5097D1 Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
AN832-4 Aeronautical Standards Group Dept of Navy and Air Force (USA)
AS5406 Sae International Dba Sae International (USA)
AS5406 Society of Automotive Engineers Inc (USA)
7205738P1 General Electric Company (USA)
MS24393-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5120-00-223-9558INTERCHANGEABLE
EXTRACTOR,STUFFING BOX AND PUMP
1204-3
4730-00-385-7885INTERCHANGEABLE
NIPPLE,TUBE
5305-00-958-7882INTERCHANGEABLE
SETSCREW
58324
4730-01-011-6192INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
AS5406J04
5950-01-050-2635INTERCHANGEABLE
TRANSFORMER,POWER

Frequently Asked Questions

What is NSN 4730-00-720-0987?

NSN 4730-00-720-0987 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 4730-00-720-0987?

NSN 4730-00-720-0987 has 26 cross-referenced part numbers: A51A88 (Surface Combustion Inc), 8611847-1 (Warner Robins Air Logistics Center), MS24393-4 (Crown Fitting Co Inc), 5832-4 (Dana Corp Weatherhead Div), C5325X4 (Dana Corp Weatherhead Div) and 21 more.

What NSN replaces 4730-00-720-0987?

There are 5 known substitutes for 4730-00-720-0987: 5120-00-223-9558, 4730-00-385-7885, 5305-00-958-7882 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS5406-04?

Key specifications for AS5406-04: Nominal Thread Size: 0.438 INCHES CENTER BULKHEAD IN; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) CENTER BULKHEAD; End Item Identification: A-10, F-16, F/A-18 AIRCRAFT; Connection Type: THREADED EXTERNAL TUBE ALL ENDS. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-720-0987 still in active supply?

NSN 4730-00-720-0987 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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