PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22P521Reducer,pipe

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 4730-00-227-6942 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-227-6942 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-227-6942. Primary manufacturer part number: 22P521.
Features
  • Reducer,pipe — FSC 4730
  • Nominal Thread Size: 1.250 INCHES SECOND END IN
  • Maximum Operating Temp: 260.0 CELSIUS SINGLE RESPONSE DEGC
  • Reducer Type: CONCENTRIC
  • Connection Style: PLAIN (PIPE) SECOND END
  • Connection Type: THREADED INTERNAL PIPE SECOND END
  • Connection Type: THREADED INTERNAL PIPE FIRST END
  • Nominal Pipe Size Accommodated: 1.250 INCHES SECOND END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Overall construction
General Description

The Reducer,pipe, cataloged under National Stock Number 4730-00-227-6942, 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 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-227-6942
Primary Part Number22P521
Item NameReducer,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Nominal Thread Size1.250 INCHES SECOND END IN
Maximum Operating Temp260.0 CELSIUS SINGLE RESPONSE DEGC
Reducer TypeCONCENTRIC
Connection StylePLAIN (PIPE) SECOND END
Connection TypeTHREADED INTERNAL PIPE SECOND END
Connection TypeTHREADED INTERNAL PIPE FIRST END
Nominal Pipe Size Accommodated1.250 INCHES SECOND END IN
Thread Series DesignatorNPT FIRST END
Nominal Pipe Size Accommodated1.500 INCHES FIRST END IN
Connection StylePLAIN (PIPE) FIRST END
MaterialIRON OVERALL
Media for Which DesignedSTEAM SINGLE RESPONSE
Nominal Thread Size1.500 INCHES FIRST END IN
Thread Series DesignatorNPT SECOND END
Nominal Overall Length2.312 INCHES IN
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Material Document and ClassificationASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
2520-00-015-7133218781 INTERCHANGEABLE
Stator,torque Converter
Clark Material Handling Company
4730-00-231-2416 INTERCHANGEABLE
Cap,pipe
4730-00-246-9208 INTERCHANGEABLE
Elbow,pipe
4730-00-249-1519 INTERCHANGEABLE
Elbow,pipe
Cross-Reference Index
Part NumberManufacturer
22P521 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AMSE B16.3 The American Society of Mechanical Engineers (USA)
MS39232-38 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
218781 Euclid Inc (USA)
Related Parts
2520-00-015-7133INTERCHANGEABLE
STATOR,TORQUE CONVERTER
218781
4730-00-231-2416INTERCHANGEABLE
CAP,PIPE
4730-00-246-9208INTERCHANGEABLE
ELBOW,PIPE
4730-00-249-1519INTERCHANGEABLE
ELBOW,PIPE

Frequently Asked Questions

What is NSN 4730-00-227-6942?

NSN 4730-00-227-6942 is a Reducer,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 4730-00-227-6942?

NSN 4730-00-227-6942 has 4 cross-referenced part numbers: 22P521 (Federal Specifications Promulgated by General Services Administration Washington DC), AMSE B16.3 (The American Society of Mechanical Engineers), MS39232-38 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 218781 (Euclid Inc).

What NSN replaces 4730-00-227-6942?

There are 4 known substitutes for 4730-00-227-6942: 2520-00-015-7133, 4730-00-231-2416, 4730-00-246-9208 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 22P521?

Key specifications for 22P521: Nominal Thread Size: 1.250 INCHES SECOND END IN; Maximum Operating Temp: 260.0 CELSIUS SINGLE RESPONSE DEGC; Reducer Type: CONCENTRIC; Connection Style: PLAIN (PIPE) SECOND END. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-227-6942 still in active supply?

NSN 4730-00-227-6942 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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