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Technical Data Sheet
646-2 ✓ 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 RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR TUBE, flexibility: FLEXIBLE, insert_size: 0.375-16 UNC, temp_rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF, overall_width: 3.625 INCHES NOMINAL IN, exterior_color: BLACK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-256-8654, 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
646-2
NSN: 5930-00-256-8654
FSC: 5930
CAGE: 78711 — TELEPHONICS CORP (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR TUBE
flexibilityFLEXIBLE
insert_size0.375-16 UNC
temp_rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
coil_quantity1
overall_width3.625 INCHES NOMINAL IN
exterior_colorBLACK
overall_height4.500 INCHES NOMINAL IN
overall_length7.063 INCHES NOMINAL IN
inside_diameter0.265 INCHES NOMINAL IN
outside_diameter0.335 INCHES NOMINAL IN
special_featuresW/MOLDED RUBBER WATERPROOF COVER
NSN5930-00-256-8654
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN 646-2 MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
TERMINAL TYPE AND QUANTITY: 4 TAB, SOLDER LUG
NOMINAL THREAD SIZE: 0.625 INCHES IN
THREAD SERIES DESIGNATOR: UNS
NONPILE-UP CONTACT ARRANGEMENT: 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION SINGLE SWITCH UNIT
CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE: 17.000 AMPERES RESISTIVE DC AND 7.500 AMPERES RESISTIVE AC
MAXIMUM VOLTAGE RATING IN VOLTS: 24.0 DC
THREAD QUANTITY PER INCH: 27
TECHNICAL CHARACTERISTICS (FLIS)
TERMINAL TYPE AND QUANTITY4 TAB, SOLDER LUG
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD SERIES DESIGNATORUNS
SPECIAL FEATURESW/MOLDED RUBBER WATERPROOF COVER
NONPILE-UP CONTACT ARRANGEMENT1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION SINGLE SWITCH UNIT
CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE17.000 AMPERES RESISTIVE DC AND 7.500 AMPERES RESISTIVE AC
MAXIMUM VOLTAGE RATING IN VOLTS24.0 DC
THREAD QUANTITY PER INCH27
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
AE138-2Interchangeable
interchangeable cross-reference
interchangeable
646Interchangeable
interchangeable cross-reference
interchangeable
AR41576Interchangeable
interchangeable cross-reference
interchangeable
AR41629Interchangeable
interchangeable cross-reference
interchangeable
646-2Interchangeable
interchangeable cross-reference
interchangeable
J38Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 646-2?
646-2 is a RELAY,ELECTROMAGNETIC.
What parts can replace 646-2?
There are 10 known substitutes for 646-2: AE138-2, 646, AR41576 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 646-2?
646-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-256-8654. This indicates validated use in U.S. government and defense supply chains.
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