PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

821-5-16SSValve Plate,hydraulic Motor-Pump

Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit · NSN 4320-01-273-2550 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-273-2550 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-273-2550. Primary manufacturer part number: 821-5-16SS.
Features
  • Valve Plate,hydraulic Motor-Pump — FSC 4320
  • 2 verified cross-references
  • Primary manufacturer: Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit
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 4320-01-273-2550, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve Plate,hydraulic Motor-Pump
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersTeledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (CAGE 86768)
Technical Specifications
ParameterValue
NSN4320-01-273-2550
Primary Part Number821-5-16SS
Item NameValve Plate,hydraulic Motor-Pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerTeledyne Industries Inc Teledyne Fluid Systems Republic Business Unit
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4720-01-228-033858781 INTERCHANGEABLE
Hose Assembly,nonmetallic
Amerex Corporation Dba Amerex Corp
Cross-Reference Index
Part NumberManufacturer
821-5-16SS Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA)
5-878-1 Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA)
Related Parts
4720-01-228-0338INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
58781

Frequently Asked Questions

What is NSN 4320-01-273-2550?

NSN 4320-01-273-2550 is a Valve Plate,hydraulic Motor-Pump, manufactured by Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-273-2550?

NSN 4320-01-273-2550 has 2 cross-referenced part numbers: 821-5-16SS (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit), 5-878-1 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit).

What NSN replaces 4320-01-273-2550?

There is 1 known substitute for 4320-01-273-2550: 4720-01-228-0338. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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