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G139 — SEMICONDUCTOR DEVICE,DIODE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

G139: SEMICONDUCTOR DEVICE,DIODE.

The SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include material: GERMANIUM SEMICONDUCTOR, body_style: PLAIN, SOLID, bore_style: PLAIN BOTH ENDS, tooth_form: STANDARD, pitch_diameter: 0.7500 INCHES NOMINAL IN, pressure_angle: 14.5000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-407-5608, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
G139
NSN: 3020-00-407-5608
NIINs: 004075608, 005171189, 009603655
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 71041 — ALTRA INDUSTRIAL MOTION CORP. (USA)
SPECIFICATIONS
materialGERMANIUM SEMICONDUCTOR
body_stylePLAIN, SOLID
bore_stylePLAIN BOTH ENDS
tooth_formSTANDARD
pitch_diameter0.7500 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
teeth_quantity36
mounting_methodTERMINAL
style_designatorHUBLESS
features_providedHERMETICALLY SEALED CASE
face_nominal_width0.125 INCHES IN
bore_nominal_diameter0.095 INCHES BOTH ENDS IN
NSN3020-00-407-5608
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SEMICONDUCTOR DEVICE,DIODE TITLE COMPONENT PN G139 MFR SEMICONDUCTOR DEVICE,D
KEY FEATURES
•
BORE NOMINAL DIAMETER: 0.095 INCHES BOTH ENDS IN
•
TEETH QUANTITY: 36
•
BODY STYLE: PLAIN, SOLID
•
BORE STYLE: PLAIN BOTH ENDS
•
STYLE DESIGNATOR: HUBLESS
•
PITCH DIAMETER: 0.7500 INCHES NOMINAL IN
•
TOOTH FORM: STANDARD
•
NOMINAL OUTSIDE DIAMETER: 0.792 INCHES IN
TECHNICAL CHARACTERISTICS
BORE NOMINAL DIAMETER0.095 INCHES BOTH ENDS IN
TEETH QUANTITY36
BODY STYLEPLAIN, SOLID
BORE STYLEPLAIN BOTH ENDS
STYLE DESIGNATORHUBLESS
PITCH DIAMETER0.7500 INCHES NOMINAL IN
TOOTH FORMSTANDARD
NOMINAL OUTSIDE DIAMETER0.792 INCHES IN
PRESSURE ANGLE14.5000 DEGREES
MATERIALCOPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
12893Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SMB182789Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is G139?
G139 is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace G139?
There are 2 known substitutes for G139: 12893, SMB182789. Substitute compatibility should be verified for your specific system.
What is the NSN for G139?
G139 is cataloged in the U.S. Government catalog under NSN 3020-00-407-5608. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.