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Technical Data Sheet
778-161 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include material: STEEL COMP E4340 OVERALL, body_style: PLAIN, SOLID, body_width: 6.125 INCHES NOMINAL IN, bore_style: STRAIGHT SPLINE BOTH ENDS, tooth_form: STANDARD, body_height: 6.031 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-273-1450, 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
778-161
NSN: 3020-00-273-1450
FSC: 3020
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP E4340 OVERALL
body_stylePLAIN, SOLID
body_width6.125 INCHES NOMINAL IN
bore_styleSTRAIGHT SPLINE BOTH ENDS
tooth_formSTANDARD
body_height6.031 INCHES NOMINAL IN
body_length7.062 INCHES NOMINAL IN
inclosure_typePARTIALLY INCLOSED
pitch_diameter4.0000 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity24
mounting_methodBRACKET(S) AND SLOT SINGLE GROUP
NSN3020-00-273-1450
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN 778-161 MFR TRANSFORMER,POWER
KEY FEATURES
TOOTH FORM: STANDARD
MATERIAL: STEEL COMP E4340 OVERALL
NOMINAL OUTSIDE DIAMETER: 4.249 INCHES IN
SPLINE QUANTITY: 6 BOTH ENDS
BODY STYLE: PLAIN, SOLID
TEETH QUANTITY: 24
STYLE DESIGNATOR: PROTRUDING HUB
TECHNICAL CHARACTERISTICS (FLIS)
TOOTH FORMSTANDARD
MATERIALSTEEL COMP E4340 OVERALL
NOMINAL OUTSIDE DIAMETER4.249 INCHES IN
SPLINE QUANTITY6 BOTH ENDS
SPECIAL FEATURESFINISHED TEETH TO HAVE SURFACE HARDNESS OF 55 SHORE MIN DEPTH1/32 TO 1/16
BODY STYLEPLAIN, SOLID
TEETH QUANTITY24
STYLE DESIGNATORPROTRUDING HUB
PRESSURE ANGLE20.0000 DEGREES
BORE STYLESTRAIGHT SPLINE BOTH ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
EN-39-1Interchangeable
interchangeable cross-reference
interchangeable
778-161Interchangeable
interchangeable cross-reference
interchangeable
EN-39Interchangeable
interchangeable cross-reference
interchangeable
BUWEPSDWG778161Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 778-161?
778-161 is a TRANSFORMER,POWER.
What parts can replace 778-161?
There are 4 known substitutes for 778-161: EN-39-1, 778-161, EN-39 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 778-161?
778-161 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-273-1450. This indicates validated use in U.S. government and defense supply chains.
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