PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 1903-B
1903-B ✓ 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 ATTENUATOR,VARIABLE is a the manufacturer industrial component. Key specifications include body_style: COAXIAL TYPE, shaft_type: ROUND, FLATTED, application_design: TRANSMISSION LINE, terminal_type_and_quantity: 2 CONNECTOR, COAXIAL, MALE, attenuation_variation_method: CONTINUOUS, adjustment_device_type_and_quantity: 1 SHAFT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-033-0594, 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
1903-B
NSN: 5985-01-033-0594
FSC: 5985
CAGE: 9N770 — TELEPHONICS CORP/PRD INSTRUMENTS (USA)
SPECIFICATIONS
body_styleCOAXIAL TYPE
shaft_typeROUND, FLATTED
application_designTRANSMISSION LINE
terminal_type_and_quantity2 CONNECTOR, COAXIAL, MALE
attenuation_variation_methodCONTINUOUS
adjustment_device_type_and_quantity1 SHAFT
NSN5985-01-033-0594
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ATTENUATOR,VARIABLE TITLE COMPONENT PN 1903-B MFR ATTENUATOR,VARIABLE
KEY FEATURES
•
SHAFT TYPE: ROUND, FLATTED
•
APPLICATION DESIGN: TRANSMISSION LINE
•
ATTENUATION VARIATION METHOD: CONTINUOUS
•
TERMINAL TYPE AND QUANTITY: 2 CONNECTOR, COAXIAL, MALE
•
ADJUSTMENT DEVICE TYPE AND QUANTITY: 1 SHAFT
•
BODY STYLE: COAXIAL TYPE
TECHNICAL CHARACTERISTICS (FLIS)
SHAFT TYPEROUND, FLATTED
APPLICATION DESIGNTRANSMISSION LINE
ATTENUATION VARIATION METHODCONTINUOUS
TERMINAL TYPE AND QUANTITY2 CONNECTOR, COAXIAL, MALE
ADJUSTMENT DEVICE TYPE AND QUANTITY1 SHAFT
BODY STYLECOAXIAL TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
36384Interchangeable
interchangeable cross-reference
interchangeable
703-4-98032Interchangeable
interchangeable cross-reference
interchangeable
2503389-20Interchangeable
interchangeable cross-reference
interchangeable
4501BInterchangeable
interchangeable cross-reference
interchangeable
T/M 85278A ITEM NO. 15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1903-B?
1903-B is a ATTENUATOR,VARIABLE.
What parts can replace 1903-B?
There are 5 known substitutes for 1903-B: 36384, 703-4-98032, 2503389-20 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1903-B?
1903-B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-033-0594. 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