PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103423Disk,valve

Triumph Thermal Systems - Maryland, Inc. · NSN 1650-00-677-8524 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-677-8524 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-677-8524. Primary manufacturer part number: 103423.
Features
  • Disk,valve — FSC 1650
  • Material: STEEL
  • 2 verified cross-references
  • Primary manufacturer: Triumph Thermal Systems - Maryland, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Disk,valve, cataloged under National Stock Number 1650-00-677-8524, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Triumph Thermal Systems - Maryland, Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). 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.

Technical Specifications
ParameterValue
NSN1650-00-677-8524
Primary Part Number103423
Item NameDisk,valve
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerTriumph Thermal Systems - Maryland, Inc.
StatusACTIVE
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-105-9398103423 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
Astronautics Corporation of America
5826-00-832-2119103423 INTERCHANGEABLE
Plate,micro Switch
General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems
5340-01-311-702325145-1 INTERCHANGEABLE
Strap,retaining
Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div
Cross-Reference Index
Part NumberManufacturer
103423 Triumph Thermal Systems - Maryland, Inc. (USA)
103423 Defense & Development Enterprises Llc (USA)
Related Parts
5330-00-105-9398INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
103423
5826-00-832-2119INTERCHANGEABLE
PLATE,MICRO SWITCH
103423
5340-01-311-7023INTERCHANGEABLE
STRAP,RETAINING
25145-1

Frequently Asked Questions

What is NSN 1650-00-677-8524?

NSN 1650-00-677-8524 is a Disk,valve, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-677-8524?

NSN 1650-00-677-8524 has 2 cross-referenced part numbers: 103423 (Triumph Thermal Systems - Maryland, Inc.), 103423 (Defense & Development Enterprises Llc).

What NSN replaces 1650-00-677-8524?

There are 3 known substitutes for 1650-00-677-8524: 5330-00-105-9398, 5826-00-832-2119, 5340-01-311-7023. Verify interchangeability with system specifications before substitution.

What are the specifications of 103423?

Key specifications for 103423: Material: STEEL. 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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