PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51504B12-16Elbow,pipe to Tube

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-01-485-4579 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-485-4579 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-485-4579. Primary manufacturer part number: MS51504B12-16.
Features
  • Elbow,pipe to Tube — FSC 4730
  • Seat Angle: 37.0 DEGREES FIRST END
  • Surface Treatment Document and Classification: QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Flow Angle: 90.0 DEGREES
  • Thread Series Designator: NPTF SECOND END
  • Surface Treatment: CADMIUM OVERALL
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nominal Outside Diameter Tube Accommodated: 0.750 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,pipe to Tube, cataloged under National Stock Number 4730-01-485-4579, 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 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-485-4579
Primary Part NumberMS51504B12-16
Item NameElbow,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Seat Angle37.0 DEGREES FIRST END
Surface Treatment Document and ClassificationQQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Flow Angle90.0 DEGREES
Thread Series DesignatorNPTF SECOND END
Surface TreatmentCADMIUM OVERALL
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Outside Diameter Tube Accommodated0.750 INCHES FIRST END IN
Media for Which DesignedHYDRAULIC FLUID SINGLE RESPONSE
Specification/standard Data81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51504 GOVERNMENT STANDARD
MaterialSTEEL OVERALL
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Material Document and ClassificationMIL-F-18866 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Thread Size1.000 INCHES SECOND END IN
Leg Length1.660 INCHES NOMINAL FIRST END IN
Thread Quantity Per Inch12 FIRST END
Connection StyleFLARED (TUBE) FIRST END
Maximum Operating Temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Thread Series DesignatorUN FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Thread Class2A FIRST END A
Leg Length1.970 INCHES NOMINAL SECOND END IN
Connection StylePLAIN (PIPE) SECOND END
Nominal Thread Size1.0625 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-00-273-6686 INTERCHANGEABLE
Elbow,pipe to Tube
4730-00-322-8462 INTERCHANGEABLE
Elbow,pipe to Tube
4730-00-647-3207 INTERCHANGEABLE
Elbow,pipe to Tube
4730-00-833-9315 INTERCHANGEABLE
Elbow,pipe to Tube
4730-01-220-5613 INTERCHANGEABLE
Elbow,pipe to Tube
Cross-Reference Index
Part NumberManufacturer
MS51504B12-16 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS51504 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51504A12-16 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-F-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-273-6686INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-322-8462INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-647-3207INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-00-833-9315INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-01-220-5613INTERCHANGEABLE
ELBOW,PIPE TO TUBE

Frequently Asked Questions

What is NSN 4730-01-485-4579?

NSN 4730-01-485-4579 is a Elbow,pipe to Tube, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-485-4579?

NSN 4730-01-485-4579 has 5 cross-referenced part numbers: MS51504B12-16 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-18866 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS51504 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS51504A12-16 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-F-18866 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-01-485-4579?

There are 5 known substitutes for 4730-01-485-4579: 4730-00-273-6686, 4730-00-322-8462, 4730-00-647-3207 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51504B12-16?

Key specifications for MS51504B12-16: Seat Angle: 37.0 DEGREES FIRST END; Surface Treatment Document and Classification: QQ-P-416 TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Flow Angle: 90.0 DEGREES; Thread Series Designator: NPTF SECOND END. 25 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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