PartsTable TECHNICAL DATA SHEET
OCTOBER 2026Technical Data Sheet

8148Disk,valve

E-Systems Inc Montek Div Fluid Controls Opns · NSN 1650-00-594-3500 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-594-3500 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-594-3500. Primary manufacturer part number: 8148.
Features
  • Disk,valve — FSC 1650
  • Outside Diameter: 0.218 INCHES NOMINAL IN
  • Material: STEEL COMP 440C
  • Material Document and Classification: QQ-S-763, CLASS 440C, COND A FED SPEC SINGLE MATERIAL RESPONSE
  • 4 verified cross-references
  • Primary manufacturer: E-Systems Inc Montek Div Fluid Controls Opns
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 440c construction
General Description

The Disk,valve, cataloged under National Stock Number 1650-00-594-3500, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is E-Systems Inc Montek Div Fluid Controls Opns. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the government interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1650-00-594-3500
Primary Part Number8148
Item NameDisk,valve
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerE-Systems Inc Montek Div Fluid Controls Opns
StatusACTIVE
Outside Diameter0.218 INCHES NOMINAL IN
MaterialSTEEL COMP 440C
Material Document and ClassificationQQ-S-763, CLASS 440C, COND A FED SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
⇄ Verified Substitutes 4
5120-00-618-4789 INTERCHANGEABLE
Brush,wire,boiler Tube
5120-00-883-95938148 INTERCHANGEABLE
Wrench,box
Btr Valve Sealants Inc
4140-01-227-69188148 INTERCHANGEABLE
Fan,tubeaxial
Ebm Industries Inc Dba Ebm Papst
5998-01-289-0893C823021 INTERCHANGEABLE
Printed Wiring Board
Epson America Inc
Cross-Reference Index
Part NumberManufacturer
8148 E-Systems Inc Montek Div Fluid Controls Opns (USA)
8148 Mid-America Aerotech, Llc (USA)
8148 Moog Inc (USA)
8148 Moog Inc Div Moog Inc., Space and Defense - Salt Lake City (USA)
Related Parts
5120-00-618-4789INTERCHANGEABLE
BRUSH,WIRE,BOILER TUBE
5120-00-883-9593INTERCHANGEABLE
WRENCH,BOX
8148
4140-01-227-6918INTERCHANGEABLE
FAN,TUBEAXIAL
8148
5998-01-289-0893INTERCHANGEABLE
PRINTED WIRING BOARD
C823021

Frequently Asked Questions

What is NSN 1650-00-594-3500?

NSN 1650-00-594-3500 is a Disk,valve, manufactured by E-Systems Inc Montek Div Fluid Controls Opns, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-594-3500?

NSN 1650-00-594-3500 has 4 cross-referenced part numbers: 8148 (E-Systems Inc Montek Div Fluid Controls Opns), 8148 (Mid-America Aerotech, Llc), 8148 (Moog Inc), 8148 (Moog Inc Div Moog Inc., Space and Defense - Salt Lake City).

What NSN replaces 1650-00-594-3500?

There are 4 known substitutes for 1650-00-594-3500: 5120-00-618-4789, 5120-00-883-9593, 4140-01-227-6918 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8148?

Key specifications for 8148: Outside Diameter: 0.218 INCHES NOMINAL IN; Material: STEEL COMP 440C; Overall Height: 0.082 INCHES NOMINAL IN; Material Document and Classification: QQ-S-763, CLASS 440C, COND A FED SPEC SINGLE MATERIAL RESPONSE. 4 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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