PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

204785Piston,hydraulic Motor-Pump

Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc. · NSN 4320-01-407-2949 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-407-2949 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-407-2949. Primary manufacturer part number: 204785.
Features
  • Piston,hydraulic Motor-Pump — FSC 4320
  • Overall Diameter: 3.500 INCHES NOMINAL IN
  • General Characteristics Item Description: CAST IRON; EXTENAL RING GROOVE
  • Material: IRON
  • 2 verified cross-references
  • Primary manufacturer: Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc.
Applications
  • Applications requiring Iron construction
General Description

The Piston,hydraulic Motor-Pump, cataloged under National Stock Number 4320-01-407-2949, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-407-2949
Primary Part Number204785
Item NamePiston,hydraulic Motor-Pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerHampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc.
StatusACTIVE
Overall Diameter3.500 INCHES NOMINAL IN
General Characteristics Item DescriptionCAST IRON; EXTENAL RING GROOVE
MaterialIRON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-137-9049 INTERCHANGEABLE
Transformer,current
5315-00-200-6501138-11 INTERCHANGEABLE
Pin,straight,headed
Goodrich Corporation
2530-00-565-590554D6216-2 INTERCHANGEABLE
Spindle,wheel,driving-Nondriving
Warner Robins Air Logistics Center
5331-00-599-2890PRP902-17-142-70 INTERCHANGEABLE
O-Ring
Parker Hannifin Corporation Div O-Ring Division
6210-00-683-1119 INTERCHANGEABLE
Light,indicator
5950-00-731-9634SM-C-502636-3 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5330-00-816-456813811 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5970-00-954-16229175615-1 INTERCHANGEABLE
Insulation Sleeving,electrical
Us Army Aviation and Missile Command
4820-00-968-68603780 INTERCHANGEABLE
Cylinder Relief Valve Assembly
Husco International Inc
6220-01-356-8115204785 INTERCHANGEABLE
Lens,light
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
13811 Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc. (USA)
204785 PRIMARY Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc. (USA)
Related Parts
5950-00-137-9049INTERCHANGEABLE
TRANSFORMER,CURRENT
5315-00-200-6501INTERCHANGEABLE
PIN,STRAIGHT,HEADED
138-11
2530-00-565-5905INTERCHANGEABLE
SPINDLE,WHEEL,DRIVING-NONDRIVING
54D6216-2
5331-00-599-2890INTERCHANGEABLE
O-RING
PRP902-17-142-70
6210-00-683-1119INTERCHANGEABLE
LIGHT,INDICATOR
5950-00-731-9634INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SM-C-502636-3
5330-00-816-4568INTERCHANGEABLE
SEAL,PLAIN ENCASED
13811
5970-00-954-1622INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
9175615-1
4820-00-968-6860INTERCHANGEABLE
CYLINDER RELIEF VALVE ASSEMBLY
3780
6220-01-356-8115INTERCHANGEABLE
LENS,LIGHT
204785
5330-01-368-2081INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
204-785
3040-01-407-0749INTERCHANGEABLE
ROD,PISTON,LINEAR ACTUATING CYLI
210476

Frequently Asked Questions

What is NSN 4320-01-407-2949?

NSN 4320-01-407-2949 is a Piston,hydraulic Motor-Pump, manufactured by Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc., classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-407-2949?

NSN 4320-01-407-2949 has 2 cross-referenced part numbers: 13811 (Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc.), 204785 (Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc.).

What NSN replaces 4320-01-407-2949?

There are 12 known substitutes for 4320-01-407-2949: 5950-00-137-9049, 5315-00-200-6501, 2530-00-565-5905 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 204785?

Key specifications for 204785: End Item Identification: WEAPON SYSTEM CODE XE; TRUCK, FAMILY OF MEDIUM TACTICLE VEHICLE (FMTV); NSN 2320-01-354-4528; Special Features: 1.00IN.DIA HOLE THRU; HELD IN PLACE BY NUT MTG FACILITY IN; Overall Length: 1.500 INCHES NOMINAL IN; Overall Diameter: 3.500 INCHES NOMINAL IN. 6 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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