PartsTable
Technical Data Sheet
PartsTable / MRO / E1721
E1721 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include body_width: 3.420 INCHES NOMINAL IN, body_length: 5.470 INCHES NOMINAL IN, drill_diameter: 0.250 INCHES NOMINAL IN, inclosure_type: ENCASED, overall_height: 2.351 INCHES NOMINAL IN, overall_length: 6.710 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-223-8963, 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
MRO→ MRO_GENERAL→ E1721
NSN: 5120-00-223-8963
FSC: 5120
CAGE: 55719 — IDSC HOLDINGS LLC DIV SNAP-ON INDUSTRIAL, A DIV. OF IDSC HOLDINGS , LLC (USA)
SPECIFICATIONS
body_width3.420 INCHES NOMINAL IN
body_length5.470 INCHES NOMINAL IN
drill_diameter0.250 INCHES NOMINAL IN
inclosure_typeENCASED
overall_height2.351 INCHES NOMINAL IN
overall_length6.710 INCHES NOMINAL IN
outside_diameter0.531 INCHES IN
style_designatorRECTANGULAR TERMINAL/TERMINALS ON ADJACENT SURFACES
operating_temp_range-0.0 TO 65.0 CELSIUS DEGC
load_impedance_per_function50.0 OHMS 2ND RADIO INTERFERENCE SECOND FUNCTION
maximum_voltage_drop_per_function1.5 VOLTS AC 1ST RADIO INTERFERENCE FIRST FUNCTION
unthreaded_mounting_hole_diameter0.166 INCHES NOMINAL IN
NSN5120-00-223-8963
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,RADIO FREQUENCY INTERFERE TITLE COMPONENT PN E1721 MFR FILTER,RADIO FREQUENCY
KEY FEATURES
•
DRILL DIAMETER: 0.250 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.531 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
DRILL DIAMETER0.250 INCHES NOMINAL IN
OUTSIDE DIAMETER0.531 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
35765Interchangeable
interchangeable cross-reference
interchangeable
GGG-E-936Interchangeable
interchangeable cross-reference
interchangeable
E921Interchangeable
interchangeable cross-reference
interchangeable
E1421Interchangeable
interchangeable cross-reference
interchangeable
GGG-E-936 TY3Interchangeable
interchangeable cross-reference
interchangeable
SE101521Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is E1721?
E1721 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace E1721?
There are 24 known substitutes for E1721: 35765, GGG-E-936, E921 and 21 more. Substitute compatibility should be verified for your specific system.
Is E1721 still available?
E1721 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026