PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56680Flange,port,valve

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 1420-00-859-2557 · FSC 1420 · No Item Name Available
Verified by PartsTable
NSN 1420-00-859-2557 — this item is cataloged by the U.S. Government under National Stock Number 1420-00-859-2557. Primary manufacturer part number: 56680.
Features
  • Flange,port,valve — FSC 1420
  • 2 verified cross-references
  • Primary manufacturer: Parker Hannifin Corporation Div Hydraulic Systems Division
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Flange,port,valve, cataloged under National Stock Number 1420-00-859-2557, is classified within Federal Supply Class 1420 (No Item Name Available) of the Guided Missiles group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameFlange,port,valve
FSC / FSG1420 — No Item Name Available (FSG 14)
ManufacturersUs Army Aviation and Missile Command (CAGE 18876); Parker Hannifin Corporation Div Hydraulic Systems Division (CAGE 93835)
Technical Specifications
ParameterValue
NSN1420-00-859-2557
Primary Part Number56680
Item NameFlange,port,valve
FSC / FSG1420 / 14 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-00-596-9456 INTERCHANGEABLE
Washer,flat
5340-01-370-8791 INTERCHANGEABLE
Holder,spring
5998-01-454-3565 INTERCHANGEABLE
Circuit Card Assembly
Cross-Reference Index
Part NumberManufacturer
9978000 Us Army Aviation and Missile Command (USA)
56680 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
5310-00-596-9456INTERCHANGEABLE
WASHER,FLAT
5340-01-370-8791INTERCHANGEABLE
HOLDER,SPRING
5998-01-454-3565INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY

Frequently Asked Questions

What is NSN 1420-00-859-2557?

NSN 1420-00-859-2557 is a Flange,port,valve, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 1420 (No Item Name Available). Status: active.

What are the part numbers for NSN 1420-00-859-2557?

NSN 1420-00-859-2557 has 2 cross-referenced part numbers: 9978000 (Us Army Aviation and Missile Command), 56680 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 1420-00-859-2557?

There are 3 known substitutes for 1420-00-859-2557: 5310-00-596-9456, 5340-01-370-8791, 5998-01-454-3565. Verify interchangeability with system specifications before substitution.

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