PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WWP521Elbow,pipe

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 4730-00-246-9208 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-246-9208 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-246-9208. Primary manufacturer part number: WWP521.
Features
  • Elbow,pipe — FSC 4730
  • Surface Treatment: ZINC OVERALL
  • Surface Treatment Document and Classification: QQ-Z-325,TYPE 1 FED SPEC ALL TREATMENT RESPONSES OVERALL
  • Material Document and Classification: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE
  • Flow Angle: 45.0 DEGREES
  • Material: IRON 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 Overall construction
General Description

The Elbow,pipe, cataloged under National Stock Number 4730-00-246-9208, 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 Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 18 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
NSN4730-00-246-9208
Primary Part NumberWWP521
Item NameElbow,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Surface TreatmentZINC OVERALL
Surface Treatment Document and ClassificationQQ-Z-325,TYPE 1 FED SPEC ALL TREATMENT RESPONSES OVERALL
Material Document and ClassificationASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Flow Angle45.0 DEGREES
MaterialIRON OVERALL
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Thread Series DesignatorNPT ALL ENDS
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Leg Length1.950 INCHES NOMINAL ALL ENDS IN
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Connection StylePLAIN (PIPE) ALL ENDS
Nominal Pipe Size Accommodated2.500 INCHES ALL ENDS IN
Maximum Operating Temp260.0 CELSIUS FIRST RESPONSE DEGC
Maximum Operating Temp65.6 CELSIUS SECOND RESPONSE DEGC
Nominal Thread Size2.500 INCHES ALL ENDS IN
Media for Which DesignedSTEAM FIRST RESPONSE
Nondefinitive Spec/std Data2 TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2805-00-212-9008S2815 INTERCHANGEABLE
Valve,poppet,engine
Spirolox Inc
4730-00-227-6942 INTERCHANGEABLE
Reducer,pipe
4730-00-231-2416 INTERCHANGEABLE
Cap,pipe
4730-00-249-1519 INTERCHANGEABLE
Elbow,pipe
5330-00-291-69652089 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
3040-00-528-7722 INTERCHANGEABLE
Shaft,drive,flexible
4510-00-560-1135 INTERCHANGEABLE
Drain,lavatory
6105-00-571-82414MA19 INTERCHANGEABLE
Motor,alternating Current
W.w. Grainger, Inc. Div Government Sales Division
5330-00-605-5019 INTERCHANGEABLE
Gasket
5910-00-644-0501 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Cross-Reference Index
Part NumberManufacturer
WWP521 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
2089 Fwd Seagrave Holdings Lp (USA)
WWP521 Esco Inc (USA)
22P521 Mindeco Corp (USA)
Related Parts
2805-00-212-9008INTERCHANGEABLE
VALVE,POPPET,ENGINE
S2815
4730-00-227-6942INTERCHANGEABLE
REDUCER,PIPE
4730-00-231-2416INTERCHANGEABLE
CAP,PIPE
4730-00-249-1519INTERCHANGEABLE
ELBOW,PIPE
5330-00-291-6965INTERCHANGEABLE
GASKET
2089
3040-00-528-7722INTERCHANGEABLE
SHAFT,DRIVE,FLEXIBLE
4510-00-560-1135INTERCHANGEABLE
DRAIN,LAVATORY
6105-00-571-8241INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
4MA19
5330-00-605-5019INTERCHANGEABLE
GASKET
5910-00-644-0501INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
5910-00-701-2991INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
143708
5330-00-883-1842INTERCHANGEABLE
GASKET
2089

Frequently Asked Questions

What is NSN 4730-00-246-9208?

NSN 4730-00-246-9208 is a Elbow,pipe, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-246-9208?

NSN 4730-00-246-9208 has 4 cross-referenced part numbers: WWP521 (Federal Specifications Promulgated by General Services Administration Washington DC), 2089 (Fwd Seagrave Holdings Lp), WWP521 (Esco Inc), 22P521 (Mindeco Corp).

What NSN replaces 4730-00-246-9208?

There are 12 known substitutes for 4730-00-246-9208: 2805-00-212-9008, 4730-00-227-6942, 4730-00-231-2416 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of WWP521?

Key specifications for WWP521: Surface Treatment: ZINC OVERALL; Surface Treatment Document and Classification: QQ-Z-325,TYPE 1 FED SPEC ALL TREATMENT RESPONSES OVERALL; Material Document and Classification: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-246-9208 still in active supply?

NSN 4730-00-246-9208 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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