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Technical Data Sheet
56-81173 ✓ 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 REACTOR is a the manufacturer industrial component. Key specifications include body_width: 2.938 INCHES MAXIMUM IN, body_height: 4.250 INCHES MAXIMUM IN, body_length: 3.375 INCHES MAXIMUM IN, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING, inclosure_type: HERMETICALLY SEALED, inductance_type: FIXED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-647-6619, 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
56-81173
NSN: 5950-00-647-6619
FSC: 5950
CAGE: 88204 — GTE PRODUCTS CORP SYLVANIA MINIATURE LIGHTING DIV (USA)
SPECIFICATIONS
body_width2.938 INCHES MAXIMUM IN
body_height4.250 INCHES MAXIMUM IN
body_length3.375 INCHES MAXIMUM IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_typeHERMETICALLY SEALED
inductance_typeFIXED
mounting_methodTHREADED STUD(S) SINGLE GROUP
winding_quantity1 SINGLE COMPONENT
inductance_rating15.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
nominal_thread_size0.164 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
thread_quantity_per_inch32 SINGLE GROUP
NSN5950-00-647-6619
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available REACTOR TITLE COMPONENT PN 56-81173 MFR REACTOR
KEY FEATURES
INDUCTANCE TYPE: FIXED
INDUCTANCE RATING: 15.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
BODY HEIGHT: 4.250 INCHES MAXIMUM IN
TERMINAL TYPE AND QUANTITY: 2 STANDOFF, SOLDER LUG
THREAD QUANTITY PER INCH: 32 SINGLE GROUP
RELIABILITY INDICATOR: NOT ESTABLISHED
WINDING OPERATING CURRENT: 125.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
INCLOSURE TYPE: HERMETICALLY SEALED
TECHNICAL CHARACTERISTICS (FLIS)
INDUCTANCE TYPEFIXED
INDUCTANCE RATING15.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
BODY HEIGHT4.250 INCHES MAXIMUM IN
TERMINAL TYPE AND QUANTITY2 STANDOFF, SOLDER LUG
THREAD QUANTITY PER INCH32 SINGLE GROUP
RELIABILITY INDICATORNOT ESTABLISHED
WINDING OPERATING CURRENT125.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
INCLOSURE TYPEHERMETICALLY SEALED
NOMINAL THREAD SIZE0.164 INCHES SINGLE GROUP IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
3597Interchangeable
interchangeable cross-reference
interchangeable
S287-1020ISSUE10PT35Interchangeable
interchangeable cross-reference
interchangeable
376675Interchangeable
interchangeable cross-reference
interchangeable
20553Interchangeable
interchangeable cross-reference
interchangeable
2055-5Interchangeable
interchangeable cross-reference
interchangeable
5473034Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 56-81173?
56-81173 is a REACTOR.
What parts can replace 56-81173?
There are 11 known substitutes for 56-81173: 3597, S287-1020ISSUE10PT35, 376675 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 56-81173?
56-81173 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-647-6619. This indicates validated use in U.S. government and defense supply chains.
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