PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HP2Piston,pump

Brand Hydraulics · NSN 4320-01-122-5799 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-122-5799 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-122-5799. Primary manufacturer part number: HP2.
Features
  • Piston,pump — FSC 4320
  • 1 verified cross-reference
  • Primary manufacturer: Brand Hydraulics
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Piston,pump, cataloged under National Stock Number 4320-01-122-5799, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Brand Hydraulics. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePiston,pump
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersBrand Hydraulics (CAGE 19184)
Technical Specifications
ParameterValue
NSN4320-01-122-5799
Primary Part NumberHP2
Item NamePiston,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerBrand Hydraulics
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4130-00-558-0370HP2 INTERCHANGEABLE
Filter Element,air Conditioning
Farr Co
2940-01-057-9691HP2 INTERCHANGEABLE
Filter Element,fluid
Honeywell International Inc Dba Honeywell Div Consumer Products Group
3950-01-074-6705 INTERCHANGEABLE
Crane,floor,portable
4320-01-220-2284 INTERCHANGEABLE
Pumping Unit,hydraulic,power Dri
5120-01-289-43105120-01-289-4310 INTERCHANGEABLE
Riveter,blind,hand
General Services Administration Federal Supply Service
4520-01-356-7564HP150 INTERCHANGEABLE
Heating Element,electrical,nonim
Fleetheet Llc Dba Five Star Manufacturing
5120-01-367-3873HR-26 INTERCHANGEABLE
Riveter,blind,hand
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
6520-01-701-9212HP 2 INTERCHANGEABLE
Bur,dental Surgery
Neo-Flo Inc. Dba Neo-Flo Inc Div Microcopy
Cross-Reference Index
Part NumberManufacturer
HP2 PRIMARY Brand Hydraulics (USA)
Related Parts
4130-00-558-0370INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
HP2
2940-01-057-9691INTERCHANGEABLE
FILTER ELEMENT,FLUID
HP2
3950-01-074-6705INTERCHANGEABLE
CRANE,FLOOR,PORTABLE
4320-01-220-2284INTERCHANGEABLE
PUMPING UNIT,HYDRAULIC,POWER DRI
5120-01-289-4310INTERCHANGEABLE
RIVETER,BLIND,HAND
5120-01-289-4310
4520-01-356-7564INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
HP150
5120-01-367-3873INTERCHANGEABLE
RIVETER,BLIND,HAND
HR-26
6520-01-701-9212INTERCHANGEABLE
BUR,DENTAL SURGERY
HP 2

Frequently Asked Questions

What is NSN 4320-01-122-5799?

NSN 4320-01-122-5799 is a Piston,pump, manufactured by Brand Hydraulics, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-122-5799?

NSN 4320-01-122-5799 has 1 cross-referenced part number: HP2 (Brand Hydraulics).

What NSN replaces 4320-01-122-5799?

There are 8 known substitutes for 4320-01-122-5799: 4130-00-558-0370, 2940-01-057-9691, 3950-01-074-6705 and 5 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com