PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21023Sleeve and Slide,directional Con

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 4820-01-221-1628 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-221-1628 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-221-1628. Primary manufacturer part number: 21023.
Features
  • Sleeve and Slide,directional Con — FSC 4820
  • Sleeve Material: STEEL
  • Slide Material: STEEL
  • Valve Design Control Activity: 75250
  • 1 verified cross-reference
  • Primary manufacturer: Parker Hannifin Corporation Div Hydraulic Systems Division
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Sleeve and Slide,directional Con, cataloged under National Stock Number 4820-01-221-1628, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. Government technical data includes 3 verified specifications, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-221-1628
Primary Part Number21023
Item NameSleeve and Slide,directional Con
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
Sleeve MaterialSTEEL
Slide MaterialSTEEL
Valve Design Control Activity75250
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2805-00-517-991118201A INTERCHANGEABLE
Valve,poppet,engine
Brinkley Technology Group Llc Dba Hercules Manufacturing
5330-00-779-5742 INTERCHANGEABLE
Gasket
5940-00-949-5551 INTERCHANGEABLE
Terminal Board
7035-01-095-931821023 INTERCHANGEABLE
Cover,bottom
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
6250-01-353-976421023 INTERCHANGEABLE
Holder,lampholder
Reable Therapeutics Inc Dba Chattanooga Group
5315-01-387-644021023 INTERCHANGEABLE
Pin,straight,headed
Science Applications International Corporation
Cross-Reference Index
Part NumberManufacturer
21023 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
2805-00-517-9911INTERCHANGEABLE
VALVE,POPPET,ENGINE
18201A
5330-00-779-5742INTERCHANGEABLE
GASKET
5940-00-949-5551INTERCHANGEABLE
TERMINAL BOARD
7035-01-095-9318INTERCHANGEABLE
COVER,BOTTOM
21023
6250-01-353-9764INTERCHANGEABLE
HOLDER,LAMPHOLDER
21023
5315-01-387-6440INTERCHANGEABLE
PIN,STRAIGHT,HEADED
21023

Frequently Asked Questions

What is NSN 4820-01-221-1628?

NSN 4820-01-221-1628 is a Sleeve and Slide,directional Con, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-221-1628?

NSN 4820-01-221-1628 has 1 cross-referenced part number: 21023 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 4820-01-221-1628?

There are 6 known substitutes for 4820-01-221-1628: 2805-00-517-9911, 5330-00-779-5742, 5940-00-949-5551 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21023?

Key specifications for 21023: Sleeve Material: STEEL; Slide Material: STEEL; Valve Design Control Activity: 75250. 3 total characteristics are documented in the Federal Logistics Information System.

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