National Item Identification Number

01-420-1251
014201251
5960-01-420-1251
5960014201251

National Stock Number

Item Name

ELECTRON TUBE

Federal Supply Class

5960

Description

An inclosure, including two or more electrodes, in which a flow of electrons may occur through a vacuum or a contained gas. The electronic conduction takes place either by means of electrons emitted from a cathode or by ionization of the contained gas. Includes phototubes (photoemissive type only), Geiger-Mueller tubes, traveling wave tubes, cathode ray tubes and microwave tubes (Klystron, magnetron, or the like). Excludes items whose primary purpose is to produce light energy. Also excludes PHOTOELECTRIC CELL; and SEMICONDUCTOR DEVICE (as modified).

Commercial and Government Entity Code (Supplier Data)

---

06980

---

COMMUNICATIONS & POWER INDUSTRIES
INC
301 INDUSTRIAL RD
SAN CARLOS
CA
94070
650-594-4076

---

Reference Numbers (Part Numbers)

4CW100000E

Required Categories

IDENTIFYING NUMBER
ENVELOPE MEDIUM TYPE
TUBE TYPE
OVERALL LENGTH
OVERALL DIA

Required Description

4CW100000E REFERENCE NO.
VACUUM
TETRODE
12.820 INCHES NOMINAL
9.530 INCHES N