51B2991 — TRANSFORMER,POWER

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

51B2991: TRANSFORMER,POWER.

The TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include body_width: 2.375 INCHES NOMINAL IN, body_height: 2.000 INCHES NOMINAL IN, body_length: 2.500 INCHES NOMINAL IN, inclosure_type: OPEN, mounting_method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP, frequency_rating: 320.0 HERTZ MINIMUM AND 1.0 KILOHERTZ MAXIMUM SINGLE COMPONENT. This part is cataloged in the U.S.

Government catalog under NSN 5950-00-645-6929, 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

51B2991

NSN: 5950-00-645-6929
FSC: 5950 — Coils and Transformers
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)

SPECIFICATIONS

body_width	2.375 INCHES NOMINAL IN
body_height	2.000 INCHES NOMINAL IN
body_length	2.500 INCHES NOMINAL IN
inclosure_type	OPEN
mounting_method	FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating	320.0 HERTZ MINIMUM AND 1.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
reliability_indicator	NOT ESTABLISHED
winding_shielding_method	INTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
winding_operating_current	5.2 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
winding_operating_voltage	6.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
mounting_facility_quantity	4 SINGLE GROUP
terminal_type_and_quantity	8 TAB, SOLDER LUG
NSN	5950-00-645-6929

COMPONENT DIAGRAM

KEY FEATURES

•

MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP

•

INCLOSURE TYPE: OPEN

•

CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 1.687 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN

•

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

•

MOUNTING METHOD: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP

•

BODY WIDTH: 2.375 INCHES NOMINAL IN

•

BODY HEIGHT: 2.000 INCHES NOMINAL IN

•

WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT

TECHNICAL CHARACTERISTICS

MOUNTING FACILITY QUANTITY	4 SINGLE GROUP
INCLOSURE TYPE	OPEN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH	1.687 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
INPUT-OUTPUT PHASE RELATIONSHIP	SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
MOUNTING METHOD	FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
BODY WIDTH	2.375 INCHES NOMINAL IN
BODY HEIGHT	2.000 INCHES NOMINAL IN
WINDING FUNCTION AND QUANTITY	1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
WINDING SHIELDING METHOD	INTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
BODY LENGTH	2.500 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 1

2653Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 51B2991?

51B2991 is a TRANSFORMER,POWER.

What parts can replace 51B2991?

There is 1 known substitute for 51B2991: 2653. Substitute compatibility should be verified for your specific system.

What is the NSN for 51B2991?

51B2991 is cataloged in the U.S. Government catalog under NSN 5950-00-645-6929. This indicates validated use in U.S. government and defense supply chains.

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