PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PP189-2Valve Head,hydraulic Motor-Pump

Dh Instruments Inc. · NSN 4320-01-521-7581 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-521-7581 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-521-7581. Primary manufacturer part number: PP189-2.
Features
  • Valve Head,hydraulic Motor-Pump — FSC 4320
  • Motor-Pump Design Control Activity: 2J641
  • Furnished Items and Quantity: 1 VALVE
  • 2 verified cross-references
  • Primary manufacturer: Dh Instruments Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Head,hydraulic Motor-Pump, cataloged under National Stock Number 4320-01-521-7581, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Dh Instruments Inc.. Government technical data includes 2 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-521-7581
Primary Part NumberPP189-2
Item NameValve Head,hydraulic Motor-Pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDh Instruments Inc.
StatusACTIVE
Motor-Pump Design Control Activity2J641
Furnished Items and Quantity1 VALVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5305-00-010-2152102152 INTERCHANGEABLE
Screw,wood
General Motors Llc Dba General Motors Llc
5905-00-106-1356 INTERCHANGEABLE
Resistor,fixed,composition
5940-00-165-2880102152 INTERCHANGEABLE
Terminal Board
Bull SAS
6685-00-220-94837790-2 INTERCHANGEABLE
Indicator,humidity,plug
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
5998-01-038-9146 INTERCHANGEABLE
Circuit Card Assembly
6320-01-084-881710-2152 INTERCHANGEABLE
Panel,alarm,shipboard
L3 Technologies, Inc.
3040-01-320-8588 INTERCHANGEABLE
Shaft,shouldered
5995-01-535-6600102152 INTERCHANGEABLE
Cable Assembly,radio Frequency
Hii Unmanned Systems, Inc
7530-01-611-480610215-2 INTERCHANGEABLE
Paper,bond
3 Star Papers Ltd Dba Limited Papers Div Limited Papers
Cross-Reference Index
Part NumberManufacturer
102152 Dh Instruments Inc. (USA)
PP189-2 PRIMARY Dh Instruments Inc. (USA)
Related Parts
5305-00-010-2152INTERCHANGEABLE
SCREW,WOOD
102152
5905-00-106-1356INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5940-00-165-2880INTERCHANGEABLE
TERMINAL BOARD
102152
6685-00-220-9483INTERCHANGEABLE
INDICATOR,HUMIDITY,PLUG
7790-2
5998-01-038-9146INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6320-01-084-8817INTERCHANGEABLE
PANEL,ALARM,SHIPBOARD
10-2152
3040-01-320-8588INTERCHANGEABLE
SHAFT,SHOULDERED
5995-01-535-6600INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
102152
7530-01-611-4806INTERCHANGEABLE
PAPER,BOND
10215-2

Frequently Asked Questions

What is NSN 4320-01-521-7581?

NSN 4320-01-521-7581 is a Valve Head,hydraulic Motor-Pump, manufactured by Dh Instruments Inc., classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-521-7581?

NSN 4320-01-521-7581 has 2 cross-referenced part numbers: 102152 (Dh Instruments Inc.), PP189-2 (Dh Instruments Inc.).

What NSN replaces 4320-01-521-7581?

There are 9 known substitutes for 4320-01-521-7581: 5305-00-010-2152, 5905-00-106-1356, 5940-00-165-2880 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PP189-2?

Key specifications for PP189-2: Motor-Pump Design Control Activity: 2J641; Furnished Items and Quantity: 1 VALVE. 2 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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