PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B16.15Elbow,pipe

The American Society of Mechanical Engineers · NSN 4730-00-249-3895 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-249-3895 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-249-3895. Primary manufacturer part number: B16.15.
Features
  • Elbow,pipe — FSC 4730
  • Thread Series Designator: NPT ALL ENDS
  • Material: COPPER ALLOY OVERALL
  • Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE
  • Operating Pressure: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
  • Nondefinitive Spec/std Data: A CLASS
  • Operating Pressure: 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
  • Media for Which Designed: STEAM FIRST RESPONSE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Elbow,pipe, cataloged under National Stock Number 4730-00-249-3895, 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 15 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-249-3895
Primary Part NumberB16.15
Item NameElbow,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Thread Series DesignatorNPT ALL ENDS
MaterialCOPPER ALLOY OVERALL
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Operating Pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Nondefinitive Spec/std DataA CLASS
Operating Pressure175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Media for Which DesignedSTEAM FIRST RESPONSE
Connection StylePLAIN (PIPE) ALL ENDS
Leg Length3.790 INCHES NOMINAL ALL ENDS IN
Nominal Pipe Size Accommodated4.000 INCHES ALL ENDS IN
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Maximum Operating Temp207.7 CELSIUS FIRST RESPONSE DEGC
Maximum Operating Temp65.6 CELSIUS SECOND RESPONSE DEGC
Nominal Thread Size4.000 INCHES ALL ENDS IN
Flow Angle90.0 DEGREES
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-053-0266 INTERCHANGEABLE
Elbow,pipe
4730-00-187-7648 INTERCHANGEABLE
Coupling,pipe
4730-00-187-7651 INTERCHANGEABLE
Coupling,pipe
4730-00-189-3042 INTERCHANGEABLE
Reducer,pipe
4730-00-189-3044 INTERCHANGEABLE
Reducer,pipe
4730-00-203-8350 INTERCHANGEABLE
Coupling,pipe
4730-00-231-2386 INTERCHANGEABLE
Cap,pipe
4730-00-231-2400 INTERCHANGEABLE
Cap,pipe
4730-00-231-2407 INTERCHANGEABLE
Cap,pipe
4730-00-249-2065 INTERCHANGEABLE
Tee,pipe
Cross-Reference Index
Part NumberManufacturer
B16.15 The American Society of Mechanical Engineers (USA)
MS51845-12 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
WWP460CLASSA Federal Specifications Promulgated by General Services Administration Washington DC (USA)
74383A Air Products & Chemicals, Inc (USA)
Related Parts
4730-00-053-0266INTERCHANGEABLE
ELBOW,PIPE
4730-00-187-7648INTERCHANGEABLE
COUPLING,PIPE
4730-00-187-7651INTERCHANGEABLE
COUPLING,PIPE
4730-00-189-3042INTERCHANGEABLE
REDUCER,PIPE
4730-00-189-3044INTERCHANGEABLE
REDUCER,PIPE
4730-00-203-8350INTERCHANGEABLE
COUPLING,PIPE
4730-00-231-2386INTERCHANGEABLE
CAP,PIPE
4730-00-231-2400INTERCHANGEABLE
CAP,PIPE
4730-00-231-2407INTERCHANGEABLE
CAP,PIPE
4730-00-249-2065INTERCHANGEABLE
TEE,PIPE
4730-00-249-3875INTERCHANGEABLE
ELBOW,PIPE
4730-00-249-3882INTERCHANGEABLE
ELBOW,PIPE

Frequently Asked Questions

What is NSN 4730-00-249-3895?

NSN 4730-00-249-3895 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 4730-00-249-3895?

NSN 4730-00-249-3895 has 4 cross-referenced part numbers: B16.15 (The American Society of Mechanical Engineers), MS51845-12 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), WWP460CLASSA (Federal Specifications Promulgated by General Services Administration Washington DC), 74383A (Air Products & Chemicals, Inc).

What NSN replaces 4730-00-249-3895?

There are 12 known substitutes for 4730-00-249-3895: 4730-00-053-0266, 4730-00-187-7648, 4730-00-187-7651 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B16.15?

Key specifications for B16.15: Thread Series Designator: NPT ALL ENDS; Material: COPPER ALLOY OVERALL; Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE; Operating Pressure: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-249-3895 still in active supply?

NSN 4730-00-249-3895 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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