PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS39232-2Reducer,pipe

Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy · NSN 4730-00-231-5644 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-231-5644 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-231-5644. Primary manufacturer part number: MS39232-2.
Features
  • Reducer,pipe — FSC 4730
  • Maximum Operating Temp: 260.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Media for Which Designed: AIR THIRD RESPONSE
  • Nominal Thread Size: 0.250 INCHES SECOND END IN
  • Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN
  • Nominal Pipe Size Accommodated: 0.375 INCHES FIRST END IN
  • Connection Type: THREADED INTERNAL PIPE SECOND END
  • Media for Which Designed: STEAM FIRST RESPONSE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Malleable Overall construction
General Description

The Reducer,pipe, cataloged under National Stock Number 4730-00-231-5644, 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 Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-231-5644
Primary Part NumberMS39232-2
Item NameReducer,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAti Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy
StatusCANCELLED
Maximum Operating Temp260.0 FAHRENHEIT SINGLE RESPONSE DEGF
Media for Which DesignedAIR THIRD RESPONSE
Nominal Thread Size0.250 INCHES SECOND END IN
Nominal Pipe Size Accommodated0.250 INCHES SECOND END IN
Nominal Pipe Size Accommodated0.375 INCHES FIRST END IN
Connection TypeTHREADED INTERNAL PIPE SECOND END
Media for Which DesignedSTEAM FIRST RESPONSE
Surface Treatment Document and ClassificationASTM A153 ASSN STD SINGLE TREATMENT RESPONSE INSIDE
Reducer TypeCONCENTRIC
Connection StylePLAIN (PIPE) ALL ENDS
Connection TypeTHREADED INTERNAL PIPE FIRST END
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Nominal Thread Size0.375 INCHES FIRST END IN
Surface Treatment Document and ClassificationASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OUTSIDE
Material Document and ClassificationASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MaterialIRON MALLEABLE OVERALL
Surface TreatmentZINC OVERALL
Thread Series DesignatorNPT ALL ENDS
Nondefinitive Spec/std Data1 TABLE
Nominal Overall Length1.125 INCHES IN
Specification/standard Data96906-MS39232 GOVERNMENT STANDARD
Media for Which DesignedFLUID FOURTH RESPONSE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
3110-00-100-0801 INTERCHANGEABLE
Cup,tapered Roller Bearing
2805-00-350-0390320552 INTERCHANGEABLE
Bracket,valve Housing
Brinkley Technology Group Llc Dba Hercules Manufacturing
5950-00-737-803880347 INTERCHANGEABLE
Saturable Reactor
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
3040-01-257-162780347 INTERCHANGEABLE
Lever,remote Control
Pneudraulics, Inc.
2590-01-353-650880347 INTERCHANGEABLE
Bracket,vehicular Components
M-B Companies, Inc
6220-01-568-54188034-7 INTERCHANGEABLE
Light,navigational,aircraft
Luminescent Systems, Inc. Dba Lsi Div Lsi-Nh
6030-01-683-397880347 INTERCHANGEABLE
Receiver-Transmitter,light Signa
Mspt, Llc Dba Mspt Llc
Cross-Reference Index
Part NumberManufacturer
MS39232-2 Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy (USA)
MS39232-2 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS39232-2 Dana Corp Weatherhead Div (USA)
B16.3 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
WWP521 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS39232-2 Itt Grinnell Corp (USA)
80347 Lawson Products, Inc. (USA)
MS39232-2 The Walworth Company (USA)
AMSE B16.3 The American Society of Mechanical Engineers (USA)
Related Parts
3110-00-100-0801INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
2805-00-350-0390INTERCHANGEABLE
BRACKET,VALVE HOUSING
320552
5950-00-737-8038INTERCHANGEABLE
SATURABLE REACTOR
80347
3040-01-257-1627INTERCHANGEABLE
LEVER,REMOTE CONTROL
80347
2590-01-353-6508INTERCHANGEABLE
BRACKET,VEHICULAR COMPONENTS
80347
6220-01-568-5418INTERCHANGEABLE
LIGHT,NAVIGATIONAL,AIRCRAFT
8034-7
6030-01-683-3978INTERCHANGEABLE
RECEIVER-TRANSMITTER,LIGHT SIGNA
80347

Frequently Asked Questions

What is NSN 4730-00-231-5644?

NSN 4730-00-231-5644 is a Reducer,pipe, manufactured by Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-231-5644?

NSN 4730-00-231-5644 has 9 cross-referenced part numbers: MS39232-2 (Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy), MS39232-2 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS39232-2 (Dana Corp Weatherhead Div), B16.3 (American National Standards Institute Incorporated Dba American National Standards Institute), WWP521 (Federal Specifications Promulgated by General Services Administration Washington DC) and 4 more.

What NSN replaces 4730-00-231-5644?

There are 7 known substitutes for 4730-00-231-5644: 3110-00-100-0801, 2805-00-350-0390, 5950-00-737-8038 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS39232-2?

Key specifications for MS39232-2: Maximum Operating Temp: 260.0 FAHRENHEIT SINGLE RESPONSE DEGF; Media for Which Designed: AIR THIRD RESPONSE; Nominal Thread Size: 0.250 INCHES SECOND END IN; Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN. 25 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-231-5644 still in active supply?

NSN 4730-00-231-5644 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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