PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28721Disk,valve

Hydro-Aire Aerospace Corp · NSN 1650-00-337-4798 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-337-4798 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-337-4798. Primary manufacturer part number: 28721.
Features
  • Disk,valve — FSC 1650
  • Material: STEEL CORROSION RESISTING
  • 1 verified cross-reference
  • Primary manufacturer: Hydro-Aire Aerospace Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Disk,valve, cataloged under National Stock Number 1650-00-337-4798, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. Government technical data includes 1 verified specification, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1650-00-337-4798
Primary Part Number28721
Item NameDisk,valve
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerHydro-Aire Aerospace Corp
StatusACTIVE
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5330-00-285-8385PGF8764 INTERCHANGEABLE
Seal,plain Encased
Dana Off Highway Products, Llc
1680-00-348-398428721 INTERCHANGEABLE
Stop
Parker Hannifin Corporation Div Aerospace Group Headquarters
4810-00-394-285128721 INTERCHANGEABLE
Valve,solenoid
Forenta Lp
5330-01-399-4673236139 INTERCHANGEABLE
Seal,plain Encased
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
28721 PRIMARY Hydro-Aire Aerospace Corp (USA)
Related Parts
5330-00-285-8385INTERCHANGEABLE
SEAL,PLAIN ENCASED
PGF8764
1680-00-348-3984INTERCHANGEABLE
STOP
28721
4810-00-394-2851INTERCHANGEABLE
VALVE,SOLENOID
28721
5330-01-399-4673INTERCHANGEABLE
SEAL,PLAIN ENCASED
236139

Frequently Asked Questions

What is NSN 1650-00-337-4798?

NSN 1650-00-337-4798 is a Disk,valve, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-337-4798?

NSN 1650-00-337-4798 has 1 cross-referenced part number: 28721 (Hydro-Aire Aerospace Corp).

What NSN replaces 1650-00-337-4798?

There are 4 known substitutes for 1650-00-337-4798: 5330-00-285-8385, 1680-00-348-3984, 4810-00-394-2851 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28721?

Key specifications for 28721: Material: STEEL CORROSION RESISTING. 1 total characteristics are documented in the Federal Logistics Information System.

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