PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4637Electron Tube

Renesas Electronics America Inc · NSN 5960-00-139-2603 · FSC 5960 · No Item Name Available
Verified by PartsTable
NSN 5960-00-139-2603 — this item is cataloged by the U.S. Government under National Stock Number 5960-00-139-2603. Primary manufacturer part number: 4637.
Features
  • Electron Tube — FSC 5960
  • 1 verified cross-reference
  • Primary manufacturer: Renesas Electronics America Inc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Electron Tube, cataloged under National Stock Number 5960-00-139-2603, 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 Renesas Electronics America Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5960-00-139-2603
Primary Part Number4637
Item NameElectron Tube
FSC / FSG5960 / 59 — No Item Name Available
ManufacturerRenesas Electronics America Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3030-00-204-0189 INTERCHANGEABLE
Belts,v,matched Set
3020-00-268-41992B4637 INTERCHANGEABLE
Gear,helical
Fwd Seagrave Holdings Lp
5136-00-403-555226821 INTERCHANGEABLE
Die Head and Die,hand
Curtis-Toledo, Inc.
3120-00-499-9034 INTERCHANGEABLE
Bearing,washer,thrust
6625-00-779-99394637 INTERCHANGEABLE
Network,frequency T
Electro Scientific Industries Inc
4540-01-018-00234637 INTERCHANGEABLE
Heating Element,ele
Bunn-O-Matic Corporation Div Government Sales
5980-01-155-3687A531A060-102 INTERCHANGEABLE
Light Emitting Diode
Kearfott Corporation Div Guidance and Navigation Division
Cross-Reference Index
Part NumberManufacturer
4637 Renesas Electronics America Inc (USA)
Related Parts
3030-00-204-0189INTERCHANGEABLE
BELTS,V,MATCHED SET
3020-00-268-4199INTERCHANGEABLE
GEAR,HELICAL
2B4637
5136-00-403-5552INTERCHANGEABLE
DIE HEAD AND DIE,HAND
26821
3120-00-499-9034INTERCHANGEABLE
BEARING,WASHER,THRUST
6625-00-779-9939INTERCHANGEABLE
NETWORK,FREQUENCY T
4637
4540-01-018-0023INTERCHANGEABLE
HEATING ELEMENT,ELE
4637
5980-01-155-3687INTERCHANGEABLE
LIGHT EMITTING DIODE
A531A060-102

Frequently Asked Questions

What is NSN 5960-00-139-2603?

NSN 5960-00-139-2603 is a Electron Tube, manufactured by Renesas Electronics America Inc, classified under FSC 5960 (No Item Name Available). Status: active.

What are the part numbers for NSN 5960-00-139-2603?

NSN 5960-00-139-2603 has 1 cross-referenced part number: 4637 (Renesas Electronics America Inc).

What NSN replaces 5960-00-139-2603?

There are 7 known substitutes for 5960-00-139-2603: 3030-00-204-0189, 3020-00-268-4199, 5136-00-403-5552 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4637?

Key specifications for 4637: Special Features: MANUFACTURER CLASSIFICATION:BEAM POWER; ENVELOPE MATERIAL:CERAMIC AND METAL. 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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