PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B16-11-1952TABLE1SCHEDULE40Elbow,pipe

Aeronautical Standards Group Dept of Navy and Air Force · NSN 4730-00-249-3981 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-249-3981 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-249-3981. Primary manufacturer part number: B16-11-1952TABLE1SCHEDULE40.
Features
  • Elbow,pipe — FSC 4730
  • Operating Pressure: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
  • Operating Pressure: 750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
  • Flow Angle: 90.0 DEGREES
  • Material: STEEL OVERALL
  • Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE
  • Connection Style: SOCKET (PIPE) ALL ENDS
  • Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,pipe, cataloged under National Stock Number 4730-00-249-3981, 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 Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-249-3981
Primary Part NumberB16-11-1952TABLE1SCHEDULE40
Item NameElbow,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusACTIVE
Operating Pressure600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Operating Pressure750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Flow Angle90.0 DEGREES
MaterialSTEEL OVERALL
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Connection StyleSOCKET (PIPE) ALL ENDS
Nominal Pipe Size Accommodated2.000 INCHES ALL ENDS IN
Leg Length2.125 INCHES NOMINAL ALL ENDS IN
Connection TypeUNTHREADED INTERNAL PIPE ALL ENDS
Material Document and ClassificationASTM A182,GRADE F11 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Media for Which DesignedSTEAM FIRST RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4730-00-249-3974 INTERCHANGEABLE
Elbow,pipe
4730-00-249-3976 INTERCHANGEABLE
Elbow,pipe
4730-00-249-3977 INTERCHANGEABLE
Elbow,pipe
4730-00-249-3979 INTERCHANGEABLE
Elbow,pipe
4730-00-249-3980 INTERCHANGEABLE
Elbow,pipe
4730-00-257-2145 INTERCHANGEABLE
Tee,pipe
4730-00-257-2146 INTERCHANGEABLE
Tee,pipe
4730-00-257-2148 INTERCHANGEABLE
Tee,pipe
4730-00-825-9917240 3/8 INCH INTERCHANGEABLE
Elbow,pipe
Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy
Cross-Reference Index
Part NumberManufacturer
B16-11-1952TABLE1SCHEDULE40 Aeronautical Standards Group Dept of Navy and Air Force (USA)
ASME B16.11 Aeronautical Standards Group Dept of Navy and Air Force (USA)
ASME B16.11 The American Society of Mechanical Engineers (USA)
Related Parts
4730-00-249-3974INTERCHANGEABLE
ELBOW,PIPE
4730-00-249-3976INTERCHANGEABLE
ELBOW,PIPE
4730-00-249-3977INTERCHANGEABLE
ELBOW,PIPE
4730-00-249-3979INTERCHANGEABLE
ELBOW,PIPE
4730-00-249-3980INTERCHANGEABLE
ELBOW,PIPE
4730-00-257-2145INTERCHANGEABLE
TEE,PIPE
4730-00-257-2146INTERCHANGEABLE
TEE,PIPE
4730-00-257-2148INTERCHANGEABLE
TEE,PIPE
4730-00-825-9917INTERCHANGEABLE
ELBOW,PIPE
240 3/8 INCH

Frequently Asked Questions

What is NSN 4730-00-249-3981?

NSN 4730-00-249-3981 is a Elbow,pipe, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-249-3981?

NSN 4730-00-249-3981 has 3 cross-referenced part numbers: B16-11-1952TABLE1SCHEDULE40 (Aeronautical Standards Group Dept of Navy and Air Force), ASME B16.11 (Aeronautical Standards Group Dept of Navy and Air Force), ASME B16.11 (The American Society of Mechanical Engineers).

What NSN replaces 4730-00-249-3981?

There are 9 known substitutes for 4730-00-249-3981: 4730-00-249-3974, 4730-00-249-3976, 4730-00-249-3977 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B16-11-1952TABLE1SCHEDULE40?

Key specifications for B16-11-1952TABLE1SCHEDULE40: Operating Pressure: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS; Operating Pressure: 750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS; Flow Angle: 90.0 DEGREES; Material: STEEL OVERALL. 11 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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