PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WWP521Elbow,pipe

Samuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc · NSN 4730-00-246-9203 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-246-9203 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-246-9203. Primary manufacturer part number: WWP521.
Features
  • Elbow,pipe — FSC 4730
  • Surface Treatment: ZINC OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE
  • Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
  • Material Document and Classification: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: NPT ALL ENDS
  • Nominal Thread Size: 0.750 INCHES ALL ENDS IN
  • Media for Which Designed: STEAM FIRST RESPONSE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Overall construction
General Description

The Elbow,pipe, cataloged under National Stock Number 4730-00-246-9203, 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 Samuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc. Government technical data includes 17 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-246-9203
Primary Part NumberWWP521
Item NameElbow,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSamuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc
StatusCANCELLED
Surface TreatmentZINC OVERALL
Nondefinitive Spec/std Data2 TYPE
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Material Document and ClassificationASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorNPT ALL ENDS
Nominal Thread Size0.750 INCHES ALL ENDS IN
Media for Which DesignedSTEAM FIRST RESPONSE
Maximum Operating Temp500.0 FAHRENHEIT FIRST RESPONSE DEGF
Maximum Operating Temp150.0 FAHRENHEIT SECOND RESPONSE DEGF
Leg Length0.980 INCHES NOMINAL ALL ENDS IN
Nominal Pipe Size Accommodated0.750 INCHES ALL ENDS IN
Connection StylePLAIN (PIPE) ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
MaterialIRON OVERALL
Flow Angle45.0 DEGREES
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
2530-00-087-0327222640 INTERCHANGEABLE
Power Steering Plug
Eaton Aerospace, Llc Dba Jackson South
Cross-Reference Index
Part NumberManufacturer
WWP521 Samuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc (USA)
B16.3 The American Society of Mechanical Engineers (USA)
WWP521 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
144137 General Motors Corp (USA)
Related Parts
2530-00-087-0327INTERCHANGEABLE
POWER STEERING PLUG
222640

Frequently Asked Questions

What is NSN 4730-00-246-9203?

NSN 4730-00-246-9203 is a Elbow,pipe, manufactured by Samuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-246-9203?

NSN 4730-00-246-9203 has 4 cross-referenced part numbers: WWP521 (Samuel Levine Plumbing and Heating Supplies, Inc. Div Slphs Inc), B16.3 (The American Society of Mechanical Engineers), WWP521 (Federal Specifications Promulgated by General Services Administration Washington DC), 144137 (General Motors Corp).

What NSN replaces 4730-00-246-9203?

There is 1 known substitute for 4730-00-246-9203: 2530-00-087-0327. Verify interchangeability with system specifications before substitution.

What are the specifications of WWP521?

Key specifications for WWP521: Surface Treatment: ZINC OVERALL; Nondefinitive Spec/std Data: 2 TYPE; Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS; Material Document and Classification: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-246-9203 still in active supply?

NSN 4730-00-246-9203 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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