PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3559200301Pump Unit,reciprocating

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division · NSN 4320-01-346-3977 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-346-3977 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-346-3977. Primary manufacturer part number: 3559200301.
Features
  • Pump Unit,reciprocating — FSC 4320
  • Unpackaged Unit Height: 35.00 INCHES MAXIMUM IN
  • Specification/standard Data: 05047-ASME Y14.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Unpackaged Unit Width: 7.500 INCHES MAXIMUM IN
  • Supplementary Features: PUMP FLOW SHALL BE .202 + OR - .040 CUBIC INCHES PER STROKE; ITEM SHALL BE A SELF-CONTAINED LIGHTWEIGHT UNIT CONSISTING OF A 230 (NOMINAL) CUBIC INCH RESERVOIR, MANUAL OPERATED PUMPING UNIT AND A LOAD RELEASE VALVE; ITEM SHALL BE SUITABLE FOR OPERATING IN A HORIZONTAL OR VERTIAL POSITION
  • Special Test Features: UNIT WEIGHT: 20LBS LBS
  • Unpackaged Unit Length: 9.500 INCHES MAXIMUM IN
  • Operating Pressure: 5000.0 POUNDS PER SQUARE INCH GAUGE (PSIG) NOMINAL POWER DRIVE LBS
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Unit,reciprocating, cataloged under National Stock Number 4320-01-346-3977, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-346-3977
Primary Part Number3559200301
Item NamePump Unit,reciprocating
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
StatusACTIVE
Unpackaged Unit Height35.00 INCHES MAXIMUM IN
Specification/standard Data05047-ASME Y14.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Unpackaged Unit Width7.500 INCHES MAXIMUM IN
Supplementary FeaturesPUMP FLOW SHALL BE .202 + OR - .040 CUBIC INCHES PER STROKE; ITEM SHALL BE A SELF-CONTAINED LIGHTWEIGHT UNIT CONSISTING OF A 230 (NOMINAL) CUBIC INCH RESERVOIR, MANUAL OPERATED PUMPING UNIT AND A LOAD RELEASE VALVE; ITEM SHALL BE SUITABLE FOR OPERATING IN A HORIZONTAL OR VERTIAL POSITION
Special Test FeaturesUNIT WEIGHT: 20LBS LBS
Unpackaged Unit Length9.500 INCHES MAXIMUM IN
Operating Pressure5000.0 POUNDS PER SQUARE INCH GAUGE (PSIG) NOMINAL POWER DRIVE LBS
Pump Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4520-00-274-6311 INTERCHANGEABLE
Heating Element,electrical,nonim
2940-00-529-273715 INTERCHANGEABLE
Filter Element,fluid
Naval Construction Battalion Center Civil Engineer Support Office Dba Exwc Ex24 Div Ex24 Tools
4730-00-720-46751618505 INTERCHANGEABLE
Coupling Half,quick Disconnect
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5999-00-763-2366 INTERCHANGEABLE
Wire Mesh,knitted
6685-00-887-1971ST109C INTERCHANGEABLE
Transmitter,pressure
Ametek, Inc. Div Aerospace & Defense
2920-00-983-0950AL61 INTERCHANGEABLE
Cap,ignition Distribution
Trw Inc Replacement Parts Div
5365-01-357-1823922910 INTERCHANGEABLE
Shim Assortment
Naval Sea Systems Command
5975-01-680-0535C-301 INTERCHANGEABLE
Chassis,electrical-Electronic Eq
Dfm Engineering, Inc. Dba Dfm Engineering Inc
Cross-Reference Index
Part NumberManufacturer
C 301 Commercial Intertech Corp (USA)
C 301 Parker Hannifin Corporation Div Cylinder Division (USA)
3559200301 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)
626151-1 Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
3559200301 Qcc Llc (USA)
Related Parts
4520-00-274-6311INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
2940-00-529-2737INTERCHANGEABLE
FILTER ELEMENT,FLUID
15
4730-00-720-4675INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
1618505
5999-00-763-2366INTERCHANGEABLE
WIRE MESH,KNITTED
6685-00-887-1971INTERCHANGEABLE
TRANSMITTER,PRESSURE
ST109C
2920-00-983-0950INTERCHANGEABLE
CAP,IGNITION DISTRIBUTION
AL61
5365-01-357-1823INTERCHANGEABLE
SHIM ASSORTMENT
922910
5975-01-680-0535INTERCHANGEABLE
CHASSIS,ELECTRICAL-ELECTRONIC EQ
C-301

Frequently Asked Questions

What is NSN 4320-01-346-3977?

NSN 4320-01-346-3977 is a Pump Unit,reciprocating, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-346-3977?

NSN 4320-01-346-3977 has 5 cross-referenced part numbers: C 301 (Commercial Intertech Corp), C 301 (Parker Hannifin Corporation Div Cylinder Division), 3559200301 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), 626151-1 (Naval Air Warfare Center Aircraft Division Joint Base Jbmdl), 3559200301 (Qcc Llc).

What NSN replaces 4320-01-346-3977?

There are 8 known substitutes for 4320-01-346-3977: 4520-00-274-6311, 2940-00-529-2737, 4730-00-720-4675 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3559200301?

Key specifications for 3559200301: Unpackaged Unit Height: 35.00 INCHES MAXIMUM IN; Specification/standard Data: 05047-ASME Y14.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Unpackaged Unit Width: 7.500 INCHES MAXIMUM IN; Supplementary Features: PUMP FLOW SHALL BE .202 + OR - .040 CUBIC INCHES PER STROKE; ITEM SHALL BE A SELF-CONTAINED LIGHTWEIGHT UNIT CONSISTING OF A 230 (NOMINAL) CUBIC INCH RESERVOIR, MANUAL OPERATED PUMPING UNIT AND A LOAD RELEASE VALVE; ITEM SHALL BE SUITABLE FOR OPERATING IN A HORIZONTAL OR VERTIAL POSITION. 11 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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