PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B16.3Elbow,pipe

The American Society of Mechanical Engineers · NSN 4730-00-249-1519 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-249-1519 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-249-1519. Primary manufacturer part number: B16.3.
Features
  • Elbow,pipe — FSC 4730
  • Material: IRON MALLEABLE OVERALL
  • Thread Series Designator: NPT SECOND END
  • Media for Which Designed: STEAM FIRST RESPONSE
  • Material Document and Classification: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: NPT FIRST END
  • Surface Treatment: ZINC OVERALL
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Malleable Overall construction
General Description

The Elbow,pipe, cataloged under National Stock Number 4730-00-249-1519, 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 The American Society of Mechanical Engineers. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-249-1519
Primary Part NumberB16.3
Item NameElbow,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
MaterialIRON MALLEABLE OVERALL
Thread Series DesignatorNPT SECOND END
Media for Which DesignedSTEAM FIRST RESPONSE
Material Document and ClassificationASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorNPT FIRST END
Surface TreatmentZINC OVERALL
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Surface Treatment Document and ClassificationQQ-Z-325,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Nominal Thread Size1.000 INCHES SECOND END IN
Maximum Operating Temp260.0 CELSIUS FIRST RESPONSE DEGC
Connection StylePLAIN (PIPE) ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Nominal Pipe Size Accommodated1.000 INCHES SECOND END IN
Maximum Operating Temp65.6 CELSIUS SECOND RESPONSE DEGC
Nominal Pipe Size Accommodated2.000 INCHES FIRST END IN
Leg Length1.730 INCHES NOMINAL FIRST END IN
Leg Length2.020 INCHES NOMINAL SECOND END IN
Nominal Thread Size2.000 INCHES FIRST END IN
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Flow Angle90.0 DEGREES
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
4730-00-227-6942 INTERCHANGEABLE
Reducer,pipe
4730-00-231-2416 INTERCHANGEABLE
Cap,pipe
4730-00-246-9208 INTERCHANGEABLE
Elbow,pipe
Cross-Reference Index
Part NumberManufacturer
B16.3 The American Society of Mechanical Engineers (USA)
22P521 Samuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc (USA)
WWP521 Allied Plumbing Sales Co Inc (USA)
WWP521 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
4730-00-227-6942INTERCHANGEABLE
REDUCER,PIPE
4730-00-231-2416INTERCHANGEABLE
CAP,PIPE
4730-00-246-9208INTERCHANGEABLE
ELBOW,PIPE

Frequently Asked Questions

What is NSN 4730-00-249-1519?

NSN 4730-00-249-1519 is a Elbow,pipe, manufactured by The American Society of Mechanical Engineers, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-249-1519?

NSN 4730-00-249-1519 has 4 cross-referenced part numbers: B16.3 (The American Society of Mechanical Engineers), 22P521 (Samuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc), WWP521 (Allied Plumbing Sales Co Inc), WWP521 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 4730-00-249-1519?

There are 3 known substitutes for 4730-00-249-1519: 4730-00-227-6942, 4730-00-231-2416, 4730-00-246-9208. Verify interchangeability with system specifications before substitution.

What are the specifications of B16.3?

Key specifications for B16.3: Material: IRON MALLEABLE OVERALL; Thread Series Designator: NPT SECOND END; Media for Which Designed: STEAM FIRST RESPONSE; Material Document and Classification: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-249-1519 still in active supply?

NSN 4730-00-249-1519 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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