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Technical Data Sheet
PartsTable / COMPONENT / 904-1
904-1 ✓ Verified by PartsTable
Melissa & Doug · 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

This brightly colored wooden shape sorter is an exciting update on a classic toy! Toddlers can drop the dozen-plus vibrant wooden shapes--including a triangle, octagon, star, rectangle, square, trapezoid, hexagon--through the color-matched holes, then roll the drum along, open the lid, and start all over again. An early-learning powerhouse that encourages color and shape recognition, manual dexterity, and more! This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-01-068-0641, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
904-1
NSN: 6625-01-068-0641
FSC: 6625
CAGE: 20944 — WILTRON CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY
duty_typeCONTINUOUS
port_shapeROUND
design_formSPOKE
design_typeSPIDER
plug_designCYLINDRICAL
storage_typeGENERAL PURPOSE WAREHOUSE
thread_class2A SINGLE MOUNTING FACILITY A
coil_quantity2
cubic_measure9.386 CUBIC INCHES
overall_width1.760 INCHES NOMINAL IN
port_quantity2
NSN6625-01-068-0641
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Melissa & Doug RELAY,ELECTROMAGNETIC TITLE COMPONENT PN 904-1 MFR Melissa & Doug RELAY,ELECTROMAGNETIC
KEY FEATURES
•
TEST TYPE FOR WHICH DESIGNED: RETURN LOSS
•
AC VOLTAGE RATING: 115.0 VOLTS MINIMUM AND 230.0 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
•
OPERATING TEST CAPABILITY: TRANSMISSION MEASURING RANGE: P12.0DBM TO M48.0DBM OVER FREQUENCY RANGE 200.0HZ TO 5.0KHZ; RETURN LOSS MEASURING RANGE: 50.0DBM OF RETURN LOSS TO 10DB OF RETURN GAIN ON 2 OR 4 WIRE CIRCUITS KHz
•
ENCLOSURE FEATURE: SINGLE ITEM W/HOUSING
TECHNICAL CHARACTERISTICS (FLIS)
TEST TYPE FOR WHICH DESIGNEDRETURN LOSS
SPECIAL FEATURESASSIGNED NAME: TEST SET, TRANSMISSION LINE AND RETURN LOSS; PORTABLE; BATTERY OR 115/230 VAC OPERATION VAC
AC VOLTAGE RATING115.0 VOLTS MINIMUM AND 230.0 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
END ITEM IDENTIFICATIONELECTRONIC TEST EQUIPMENT
OPERATING TEST CAPABILITYTRANSMISSION MEASURING RANGE: P12.0DBM TO M48.0DBM OVER FREQUENCY RANGE 200.0HZ TO 5.0KHZ; RETURN LOSS MEASURING RANGE: 50.0DBM OF RETURN LOSS TO 10DB OF RETURN GAIN ON 2 OR 4 WIRE CIRCUITS KHz
ENCLOSURE FEATURESINGLE ITEM W/HOUSING
TEST TYPE FOR WHICH DESIGNEDRETURN LOSS
SPECIAL FEATURESASSIGNED NAME: TEST SET, TRANSMISSION LINE AND RETURN LOSS; PORTABLE; BATTERY OR 115/230 VAC OPERATION VAC
AC VOLTAGE RATING115.0 VOLTS MINIMUM AND 230.0 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
END ITEM IDENTIFICATIONELECTRONIC TEST EQUIPMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
9041Interchangeable
interchangeable cross-reference
interchangeable
9230-8784Interchangeable
interchangeable cross-reference
interchangeable
19910-4ALTAInterchangeable
interchangeable cross-reference
interchangeable
XA1017Interchangeable
interchangeable cross-reference
interchangeable
CW-860/GPSInterchangeable
interchangeable cross-reference
interchangeable
548-1INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 904-1?
904-1 is a RELAY,ELECTROMAGNETIC manufactured by Melissa & Doug.
What parts can replace 904-1?
There are 13 known substitutes for 904-1: 9041, 9230-8784, 19910-4ALTA and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 904-1?
904-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-01-068-0641. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026