581-128 — TRANSFORMER,POWER AUTOTRANSFORME

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

581-128: TRANSFORMER,POWER AUTOTRANSFORME.

TRANSFORMER,POWER AUTOTRANSFORME. Key specifications include body_length: 1.250 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: TERMINAL SINGLE GROUP, frequency_rating: 550.0 HERTZ NOMINAL SINGLE COMPONENT, winding_power_rating: 1.3 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY INPUT, body_outside_diameter: 2.200 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5950-01-176-1704, 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

581-128

NSN: 5950-01-176-1704
FSC: 5950 — Coils and Transformers
CAGE: 07388 — TOROTEL, INC. DIV TOROTEL PRODUCTS, INC. (USA)

SPECIFICATIONS

body_length	1.250 INCHES MAXIMUM IN
inclosure_type	FULLY INCLOSED
mounting_method	TERMINAL SINGLE GROUP
frequency_rating	550.0 HERTZ NOMINAL SINGLE COMPONENT
winding_power_rating	1.3 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY INPUT
body_outside_diameter	2.200 INCHES MAXIMUM IN
reliability_indicator	NOT ESTABLISHED
maximum_operating_temp	130.0 CELSIUS DEGC
winding_operating_current	236.8 MILLIAMPERES AC NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
winding_operating_voltage	5.30 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
terminal_type_and_quantity	4 WIRE LEAD
winding_function_and_quantity	1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
NSN	5950-01-176-1704

COMPONENT DIAGRAM

KEY FEATURES

•

INCLOSURE TYPE: FULLY INCLOSED

•

WINDING POWER RATING: 1.3 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY INPUT

•

BODY OUTSIDE DIAMETER: 2.200 INCHES MAXIMUM IN

•

INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT

•

MOUNTING METHOD: TERMINAL SINGLE GROUP

•

WINDING FUNCTION AND QUANTITY: 1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT

•

MAXIMUM OPERATING TEMP: 130.0 CELSIUS DEGC

•

BODY LENGTH: 1.250 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

INCLOSURE TYPE	FULLY INCLOSED
WINDING POWER RATING	1.3 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY INPUT
BODY OUTSIDE DIAMETER	2.200 INCHES MAXIMUM IN
INPUT-OUTPUT PHASE RELATIONSHIP	SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
MOUNTING METHOD	TERMINAL SINGLE GROUP
WINDING FUNCTION AND QUANTITY	1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
MAXIMUM OPERATING TEMP	130.0 CELSIUS DEGC
BODY LENGTH	1.250 INCHES MAXIMUM IN
WINDING OPERATING CURRENT	236.8 MILLIAMPERES AC NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
RELIABILITY INDICATOR	NOT ESTABLISHED

SUBSTITUTES & CROSS-REFERENCES 3

27525Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

13079922Reference document

Same NSN cross-reference

Reference document — Secondary reference

322-33-0875-000Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 581-128?

581-128 is a TRANSFORMER,POWER AUTOTRANSFORME.

What parts can replace 581-128?

There are 3 known substitutes for 581-128: 27525, 13079922, 322-33-0875-000. Substitute compatibility should be verified for your specific system.

What is the NSN for 581-128?

581-128 is cataloged in the U.S. Government catalog under NSN 5950-01-176-1704. This indicates validated use in U.S. government and defense supply chains.

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581-128 — TRANSFORMER,POWER AUTOTRANSFORME

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