PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K100Valve,unloader

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division · NSN 2590-00-570-9517 · FSC 2590 · No Item Name Available
Verified by PartsTable
NSN 2590-00-570-9517 — this item is cataloged by the U.S. Government under National Stock Number 2590-00-570-9517. Primary manufacturer part number: K100.
Features
  • Valve,unloader — FSC 2590
  • 3 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,unloader, cataloged under National Stock Number 2590-00-570-9517, is classified within Federal Supply Class 2590 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,unloader
FSC / FSG2590 — No Item Name Available (FSG 25)
ManufacturersParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (CAGE 09990); Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division (CAGE 02249); Leco Inc (CAGE 24003)
Technical Specifications
ParameterValue
NSN2590-00-570-9517
Primary Part NumberK100
Item NameValve,unloader
FSC / FSG2590 / 25 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-036-1506L-2191 INTERCHANGEABLE
Bottom Plate,cylinder
Rps-Fl, Inc. Dba Rps Inc
3120-00-215-388241161 INTERCHANGEABLE
Bearing Assy
Am General Llc
5133-00-228-1341 INTERCHANGEABLE
Drill,twist
4910-00-294-5057 INTERCHANGEABLE
Tester,cylinder Compression
2530-00-359-08756245683 INTERCHANGEABLE
Plate,wear,brake Shoe
U S Army Tank Automotive Command Amsta-Im-Mm
4910-00-516-5947K-100 INTERCHANGEABLE
Tester,cylinder Compression
Hoosier Industrial Supply, Inc
5330-00-551-028910054 INTERCHANGEABLE
Gasket
Dynalec Corporation
6105-00-553-0607K100 INTERCHANGEABLE
Motor,alternating Current
General Electric Co Motor Business Group
6685-00-866-022210054 INTERCHANGEABLE
Transmitter,pressure
Celtech Corporation Div Use CAGE 65552 for All Orders
5998-01-035-2592 INTERCHANGEABLE
Circuit Card Assembly
Cross-Reference Index
Part NumberManufacturer
K100 Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)
K100 Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division (USA)
10054 Leco Inc (USA)
Related Parts
4820-00-036-1506INTERCHANGEABLE
BOTTOM PLATE,CYLINDER
L-2191
3120-00-215-3882INTERCHANGEABLE
BEARING ASSY
41161
5133-00-228-1341INTERCHANGEABLE
DRILL,TWIST
4910-00-294-5057INTERCHANGEABLE
TESTER,CYLINDER COMPRESSION
2530-00-359-0875INTERCHANGEABLE
PLATE,WEAR,BRAKE SHOE
6245683
4910-00-516-5947INTERCHANGEABLE
TESTER,CYLINDER COMPRESSION
K-100
5330-00-551-0289INTERCHANGEABLE
GASKET
10054
6105-00-553-0607INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
K100
6685-00-866-0222INTERCHANGEABLE
TRANSMITTER,PRESSURE
10054
5998-01-035-2592INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6625-01-062-6983INTERCHANGEABLE
ADAPTER KIT,TEST
K-100
5330-01-142-9932INTERCHANGEABLE
SEAL,PLAIN ENCASED
CR10050-CRWA NITRILE

Frequently Asked Questions

What is NSN 2590-00-570-9517?

NSN 2590-00-570-9517 is a Valve,unloader, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 2590 (No Item Name Available). Status: active.

What are the part numbers for NSN 2590-00-570-9517?

NSN 2590-00-570-9517 has 3 cross-referenced part numbers: K100 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), K100 (Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division), 10054 (Leco Inc).

What NSN replaces 2590-00-570-9517?

There are 12 known substitutes for 2590-00-570-9517: 4820-00-036-1506, 3120-00-215-3882, 5133-00-228-1341 and 9 more. Verify interchangeability with system specifications before substitution.

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