PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21938Disk,valve

Transdigm Inc · NSN 1650-01-507-2406 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-01-507-2406 — this item is cataloged by the U.S. Government under National Stock Number 1650-01-507-2406. Primary manufacturer part number: 21938.
Features
  • Disk,valve — FSC 1650
  • 1 verified cross-reference
  • Primary manufacturer: Transdigm Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Disk,valve, cataloged under National Stock Number 1650-01-507-2406, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Transdigm Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1650-01-507-2406
Primary Part Number21938
Item NameDisk,valve
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerTransdigm Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5930-00-140-418521938 INTERCHANGEABLE
Switch,liquid Level
Setra Systems, Inc. Dba Gems Sensors
4710-00-201-83182193-1-8 INTERCHANGEABLE
Tubing,nonmetallic
Ge Ruska Instrument Corporation Div Ge Sensing Solutions Inc
5330-00-410-2272 INTERCHANGEABLE
Seal,plain Encased
5950-00-950-961221938 INTERCHANGEABLE
Coil,electrical
Hamilton Sundstrand Corporation Dba Collins Aerospace
5970-01-061-33166706 INTERCHANGEABLE
Insulator,plate
L3 Technologies, Inc. Div Communication Systems-West
Cross-Reference Index
Part NumberManufacturer
21938 PRIMARY Transdigm Inc (USA)
Related Parts
5930-00-140-4185INTERCHANGEABLE
SWITCH,LIQUID LEVEL
21938
4710-00-201-8318INTERCHANGEABLE
TUBING,NONMETALLIC
2193-1-8
5330-00-410-2272INTERCHANGEABLE
SEAL,PLAIN ENCASED
5950-00-950-9612INTERCHANGEABLE
COIL,ELECTRICAL
21938
5970-01-061-3316INTERCHANGEABLE
INSULATOR,PLATE
6706

Frequently Asked Questions

What is NSN 1650-01-507-2406?

NSN 1650-01-507-2406 is a Disk,valve, manufactured by Transdigm Inc, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-01-507-2406?

NSN 1650-01-507-2406 has 1 cross-referenced part number: 21938 (Transdigm Inc).

What NSN replaces 1650-01-507-2406?

There are 5 known substitutes for 1650-01-507-2406: 5930-00-140-4185, 4710-00-201-8318, 5330-00-410-2272 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21938?

Key specifications for 21938: Special Features: SUGGESTED NAME-WHEEL ASSEMBLY; End Item Identification: C-5 AIRCRAFT;T.O.9H2-5-227-3;U/O NSN 1650-00-241-8858. 2 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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