PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

255047-6Housing,liquid Pump

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-420-5421 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-420-5421 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-420-5421. Primary manufacturer part number: 255047-6.
Features
  • Housing,liquid Pump — FSC 4320
  • Pump Design Control Activity: 93232
  • Pump Model Number for Which Designed: SL5047 AND SL5051
  • Material: COPPER ALLOY
  • 7 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corporation Div Epd
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Copper Alloy construction
General Description

The Housing,liquid Pump, cataloged under National Stock Number 4320-00-420-5421, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-420-5421
Primary Part Number255047-6
Item NameHousing,liquid Pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Pump Design Control Activity93232
Pump Model Number for Which DesignedSL5047 AND SL5051
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4320-00-177-3024SL5047PC74 INTERCHANGEABLE
Sleeve,shaft,pump
Curtiss-Wright Electro-Mechanical Corporation Div Epd
4320-00-177-3027255047-4 INTERCHANGEABLE
Sleeve,shaft,pump
Curtiss-Wright Electro-Mechanical Corporation Div Epd
2805-00-220-1935283-P INTERCHANGEABLE
Piston,internal Combustion Engin
Hastings Manufacturing Co Div Hastings Manufacturing Company
4820-01-416-5957J41560 INTERCHANGEABLE
Seat,valve
Pulsafeeder Inc
Cross-Reference Index
Part NumberManufacturer
SL5047PC78 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
255047-6 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
SL5047PC78 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
255047-6 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
283P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
DD445-S4700-391 Naval Ship Systems Command (USA)
SL5051PC78 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
Related Parts
4320-00-177-3024INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
SL5047PC74
4320-00-177-3027INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
255047-4
2805-00-220-1935INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
283-P
4820-01-416-5957INTERCHANGEABLE
SEAT,VALVE
J41560

Frequently Asked Questions

What is NSN 4320-00-420-5421?

NSN 4320-00-420-5421 is a Housing,liquid Pump, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-420-5421?

NSN 4320-00-420-5421 has 7 cross-referenced part numbers: SL5047PC78 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 255047-6 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL5047PC78 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 255047-6 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 283P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 2 more.

What NSN replaces 4320-00-420-5421?

There are 4 known substitutes for 4320-00-420-5421: 4320-00-177-3024, 4320-00-177-3027, 2805-00-220-1935 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 255047-6?

Key specifications for 255047-6: Special Features: GUN METAL; O/A LG 5.125 IN.; FLANGE DIA 3.375 IN.; BORE DIA 2.250 IN.; LABYRINTH IN; Pump Design Control Activity: 93232; Pump Model Number for Which Designed: SL5047 AND SL5051; Material: COPPER ALLOY. 4 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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