PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5727-2D21WElectron Tube

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5960-00-284-9285 · FSC 5960 · No Item Name Available
Verified by PartsTable
NSN 5960-00-284-9285 — this item is cataloged by the U.S. Government under National Stock Number 5960-00-284-9285. Primary manufacturer part number: 5727-2D21W.
Features
  • Electron Tube — FSC 5960
  • Nondefinitive Spec/std Data: 5727/2D21W TYPE
  • Envelope Medium Type: GAS
  • Tube Type: TETRODE
  • 3 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Electron Tube, cataloged under National Stock Number 5960-00-284-9285, is classified within Federal Supply Class 5960 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5960-00-284-9285
Primary Part Number5727-2D21W
Item NameElectron Tube
FSC / FSG5960 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Nondefinitive Spec/std Data5727/2D21W TYPE
Envelope Medium TypeGAS
Tube TypeTETRODE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5960-00-552-0082 INTERCHANGEABLE
Electron Tube
5960-00-617-9170 INTERCHANGEABLE
Electron Tube
Cross-Reference Index
Part NumberManufacturer
5727-2D21W Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-E-1/83 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
10049373 Us Army Aviation and Missile Command (USA)
Related Parts
5960-00-552-0082INTERCHANGEABLE
ELECTRON TUBE
5960-00-617-9170INTERCHANGEABLE
ELECTRON TUBE

Frequently Asked Questions

What is NSN 5960-00-284-9285?

NSN 5960-00-284-9285 is a Electron Tube, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5960 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5960-00-284-9285?

NSN 5960-00-284-9285 has 3 cross-referenced part numbers: 5727-2D21W (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-E-1/83 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 10049373 (Us Army Aviation and Missile Command).

What NSN replaces 5960-00-284-9285?

There are 2 known substitutes for 5960-00-284-9285: 5960-00-552-0082, 5960-00-617-9170. Verify interchangeability with system specifications before substitution.

What are the specifications of 5727-2D21W?

Key specifications for 5727-2D21W: Nondefinitive Spec/std Data: 5727/2D21W TYPE; Envelope Medium Type: GAS; Special Features: MFTR. CLASSIFICATION:THYRATRON; ENVELOPE MATERIAL:GLASS; Tube Type: TETRODE. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5960-00-284-9285 still in active supply?

NSN 5960-00-284-9285 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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