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12339-101 — TRANSFORMER,POWER AUTOTRANSFORME

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

12339-101: TRANSFORMER,POWER AUTOTRANSFORME.

TRANSFORMER,POWER AUTOTRANSFORME. Key specifications include MOUNTING METHOD: UNTHREADED HOLE(S) SINGLE GROUP, END ITEM IDENTIFICATION: TITANIUM W-10 VARIAC DIMMER CONTROL, MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP, ADJUSTMENT DEVICE DRIVE TYPE: SHAFT SINGLE COMPONENT, PART NAME ASSIGNED BY CONTROLLING AGENCY: W10 VARIABLE AUTOTRANSFORMER. This part is cataloged in the U.S.

Government catalog under NSN 9905-01-203-9995, 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
12339-101
NSN: 9905-01-203-9995
NIINs: 012039995, 015280631
FSC: 9905 — Signs, Advertising Displays, and Identification Plates
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
MOUNTING METHODUNTHREADED HOLE(S) SINGLE GROUP
END ITEM IDENTIFICATIONTITANIUM W-10 VARIAC DIMMER CONTROL
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
ADJUSTMENT DEVICE DRIVE TYPESHAFT SINGLE COMPONENT
PART NAME ASSIGNED BY CONTROLLING AGENCYW10 VARIABLE AUTOTRANSFORMER
NSN9905-01-203-9995
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER AUTOTRANSFORME TITLE COMPONENT PN 12339-101 MFR TRANSFORMER,POWER AUTO
KEY FEATURES
•
LENGTH: 3.300 INCHES NOMINAL IN
•
MARKING DESIGNATION: LEGEND AND SILHOUETTE FIRST SIDE
•
BASIC SHAPE STYLE: RECTANGULAR
•
COLOR: BLACK FIRST SIDE INSCRIPTION BACKGROUND
•
SURFACE TREATMENT: ANODIZE
•
WIDTH: 2.380 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH3.300 INCHES NOMINAL IN
MARKING DESIGNATIONLEGEND AND SILHOUETTE FIRST SIDE
BASIC SHAPE STYLERECTANGULAR
COLORBLACK FIRST SIDE INSCRIPTION BACKGROUND
COLORCLEAR FIRST SIDE INSCRIPTION
COLORCLEAR FIRST SIDE BORDER
SURFACE TREATMENTANODIZE
WIDTH2.380 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY
THICKNESS0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
5591321Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A-A-50271Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12339-101?
12339-101 is a TRANSFORMER,POWER AUTOTRANSFORME.
What parts can replace 12339-101?
There are 2 known substitutes for 12339-101: 5591321, A-A-50271. Substitute compatibility should be verified for your specific system.
What is the NSN for 12339-101?
12339-101 is cataloged in the U.S. Government catalog under NSN 9905-01-203-9995. 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.