PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

126657Valve Plate,hydraulic Motor-Pump

Eaton Aerospace, Llc Dba Jackson South · NSN 4320-00-308-8020 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-308-8020 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-308-8020. Primary manufacturer part number: 126657.
Features
  • Valve Plate,hydraulic Motor-Pump — FSC 4320
  • Motor-Pump Design Control Activity: 62983
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace, Llc Dba Jackson South
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Plate,hydraulic Motor-Pump, cataloged under National Stock Number 4320-00-308-8020, 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 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-308-8020
Primary Part Number126657
Item NameValve Plate,hydraulic Motor-Pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusACTIVE
Motor-Pump Design Control Activity62983
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5306-00-012-6657126657 INTERCHANGEABLE
Bolt,square Neck
U S Army Tank Automotive Command Amsta-Im-Mm
5355-00-322-0268 INTERCHANGEABLE
Knob
5985-00-479-3431126657 INTERCHANGEABLE
Drive,antenna
L3harris Technologies, Inc Div Space & Airborne Systems
2040-01-462-0367126657 INTERCHANGEABLE
Fender,marine
Jered Llc
1650-01-708-0479126657-908 INTERCHANGEABLE
Actuator,electro-Pneumatic
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
Cross-Reference Index
Part NumberManufacturer
126657 PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
Related Parts
5306-00-012-6657INTERCHANGEABLE
BOLT,SQUARE NECK
126657
5355-00-322-0268INTERCHANGEABLE
KNOB
5985-00-479-3431INTERCHANGEABLE
DRIVE,ANTENNA
126657
2040-01-462-0367INTERCHANGEABLE
FENDER,MARINE
126657
1650-01-708-0479INTERCHANGEABLE
ACTUATOR,ELECTRO-PNEUMATIC
126657-908

Frequently Asked Questions

What is NSN 4320-00-308-8020?

NSN 4320-00-308-8020 is a Valve Plate,hydraulic Motor-Pump, 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 4320-00-308-8020?

NSN 4320-00-308-8020 has 1 cross-referenced part number: 126657 (Eaton Aerospace, Llc Dba Jackson South).

What NSN replaces 4320-00-308-8020?

There are 5 known substitutes for 4320-00-308-8020: 5306-00-012-6657, 5355-00-322-0268, 5985-00-479-3431 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 126657?

Key specifications for 126657: Motor-Pump Design Control Activity: 62983. 1 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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