PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4525V50A21-1CC10Pump,rotary

Eaton Aerospace, Llc Dba Jackson South · NSN 4320-00-127-8657 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-127-8657 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-127-8657. Primary manufacturer part number: 4525V50A21-1CC10.
Features
  • Pump,rotary — FSC 4320
  • Discharge Connection Type: RECTANGULAR FLANGE
  • Operation Method: POWERED
  • Drive Shaft End Diameter: 1.250 INCHES NOMINAL IN
  • Operating Speed at Rated Capacity: 2200.0 REVOLUTIONS PER MINUTE AND 1200.0 REVOLUTIONS PER MINUTE
  • Pump Rotation Direction: CLOCKWISE
  • Drive Shaft Length: 1.940 INCHES NOMINAL IN
  • Discharge Connection Quantity: 2
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,rotary, cataloged under National Stock Number 4320-00-127-8657, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-127-8657
Primary Part Number4525V50A21-1CC10
Item NamePump,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusACTIVE
Discharge Connection TypeRECTANGULAR FLANGE
Operation MethodPOWERED
Drive Shaft End Diameter1.250 INCHES NOMINAL IN
Operating Speed at Rated Capacity2200.0 REVOLUTIONS PER MINUTE AND 1200.0 REVOLUTIONS PER MINUTE
Pump Rotation DirectionCLOCKWISE
Drive Shaft Length1.940 INCHES NOMINAL IN
Discharge Connection Quantity2
Maximum Discharge Flow Rate50.0 GALLONS PER MINUTE AND 21.0 GALLONS PER MINUTE
Intake Connection Quantity1
Media for Which DesignedHYDROCARBON FUELS AND OILS
Drive Shaft TypeMACHINE KEYWAY
Intake Connection TypeRECTANGULAR FLANGE
Rotary Pump DesignVANE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-00-080-5306 INTERCHANGEABLE
Transformer,power
1650-01-156-744965084 INTERCHANGEABLE
Pump,hydraulic,airc
Parker Hannifin Corporation Div Hydraulic Systems Division
4730-01-432-387450256 INTERCHANGEABLE
Expansion Joint,pipe
Hyspan Precision Products, Inc.
Cross-Reference Index
Part NumberManufacturer
50256 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
4525V50A21-1CC10 PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
Related Parts
5950-00-080-5306INTERCHANGEABLE
TRANSFORMER,POWER
1650-01-156-7449INTERCHANGEABLE
PUMP,HYDRAULIC,AIRC
65084
4730-01-432-3874INTERCHANGEABLE
EXPANSION JOINT,PIPE
50256

Frequently Asked Questions

What is NSN 4320-00-127-8657?

NSN 4320-00-127-8657 is a Pump,rotary, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-127-8657?

NSN 4320-00-127-8657 has 2 cross-referenced part numbers: 50256 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.), 4525V50A21-1CC10 (Eaton Aerospace, Llc Dba Jackson South).

What NSN replaces 4320-00-127-8657?

There are 3 known substitutes for 4320-00-127-8657: 5950-00-080-5306, 1650-01-156-7449, 4730-01-432-3874. Verify interchangeability with system specifications before substitution.

What are the specifications of 4525V50A21-1CC10?

Key specifications for 4525V50A21-1CC10: Discharge Connection Type: RECTANGULAR FLANGE; Operation Method: POWERED; Drive Shaft End Diameter: 1.250 INCHES NOMINAL IN; Operating Speed at Rated Capacity: 2200.0 REVOLUTIONS PER MINUTE AND 1200.0 REVOLUTIONS PER MINUTE. 14 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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