PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS18280Elbow,tube

Society of Automotive Engineers Inc · NSN 4730-00-203-7487 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-203-7487 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-203-7487. Primary manufacturer part number: AS18280.
Features
  • Elbow,tube — FSC 4730
  • Seat Angle: 12.0 DEGREES ALL ENDS
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
  • Specification/standard Data: 96906-MS21907 GOVERNMENT STANDARD
  • Flow Angle: 45.0 DEGREES
  • Nominal Outside Diameter Tube Accommodated: 0.375 INCHES ALL ENDS IN
  • Nominal Thread Size: 0.562 INCHES ALL ENDS IN
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Comp 1137 or Steel Comp 1141 or Steel Comp 4130 Overall construction
General Description

The Elbow,tube, cataloged under National Stock Number 4730-00-203-7487, 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 Society of Automotive Engineers Inc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-203-7487
Primary Part NumberAS18280
Item NameElbow,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSociety of Automotive Engineers Inc
StatusCANCELLED
Seat Angle12.0 DEGREES ALL ENDS
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
Specification/standard Data96906-MS21907 GOVERNMENT STANDARD
Flow Angle45.0 DEGREES
Nominal Outside Diameter Tube Accommodated0.375 INCHES ALL ENDS IN
Nominal Thread Size0.562 INCHES ALL ENDS IN
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MaterialSTEEL COMP 1137 OR STEEL COMP 1141 OR STEEL COMP 4130 OVERALL
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD
Material Document and ClassificationQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM A576-67T ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
Material Document and ClassificationQQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM A576-67T ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Connection TypeTHREADED EXTERNAL TUBE FIRST END BULKHEAD
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD
Thread Class3A FIRST END BULKHEAD A
Leg Length1.562 INCHES NOMINAL FIRST END IN
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Connection TypeTHREADED EXTERNAL TUBE ALL ENDS
Maximum Operating Temp275.0 FAHRENHEIT SINGLE RESPONSE DEGF
Nominal Thread Size0.562 INCHES FIRST END BULKHEAD IN
Thread Class3A ALL ENDS A
Connection StyleFLARELESS (TUBE) ALL ENDS
Nominal Outside Diameter Tube Accommodated0.375 INCHES ALL ENDS IN
Seat Angle12.0 DEGREES ALL ENDS
Media for Which DesignedHYDRAULIC FLUID SINGLE RESPONSE
Nominal Thread Size0.562 INCHES FIRST END BULKHEAD IN
Leg Length0.812 INCHES NOMINAL SECOND END IN
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size0.562 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5340-00-270-8553891944 INTERCHANGEABLE
Button,plug
Lockheed Martin Corporation Div Rms - Mitchel Field
Cross-Reference Index
Part NumberManufacturer
AS18280 Society of Automotive Engineers Inc (USA)
AS21907 Society of Automotive Engineers Inc (USA)
AS18280 Sae International Dba Sae International (USA)
MS21907-6 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AS21907 Sae International Dba Sae International (USA)
MS21907-6 Fel Avionics Limited (GBR)
Related Parts
5340-00-270-8553INTERCHANGEABLE
BUTTON,PLUG
891944

Frequently Asked Questions

What is NSN 4730-00-203-7487?

NSN 4730-00-203-7487 is a Elbow,tube, manufactured by Society of Automotive Engineers Inc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-203-7487?

NSN 4730-00-203-7487 has 6 cross-referenced part numbers: AS18280 (Society of Automotive Engineers Inc), AS21907 (Society of Automotive Engineers Inc), AS18280 (Sae International Dba Sae International), MS21907-6 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), AS21907 (Sae International Dba Sae International) and 1 more.

What NSN replaces 4730-00-203-7487?

There is 1 known substitute for 4730-00-203-7487: 5340-00-270-8553. Verify interchangeability with system specifications before substitution.

What are the specifications of AS18280?

Key specifications for AS18280: Seat Angle: 12.0 DEGREES ALL ENDS; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS; Specification/standard Data: 96906-MS21907 GOVERNMENT STANDARD; Flow Angle: 45.0 DEGREES. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-203-7487 still in active supply?

NSN 4730-00-203-7487 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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