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PartsTable / COMPONENT / RB21389
RB21389 ✓ 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 TERMINAL,FEEDTHRU is a the manufacturer industrial component. Key specifications include material: STEEL CONDUCTOR ACCOMMODATION, overall_height: 3.031 INCHES3.031 INCHES IN, overall_diameter: 0.750 INCHES0.750 INCHES IN, special_features: RETAINING RING MTGRETAINING RING MTG, basic_shape_style: TUBULAR, ROUNDTUBULAR, ROUND, surface_treatment: NICKEL CONDUCTOR ACCOMMODATION SINGLE LAYER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-899-4751, 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
RB21389
NSN: 5940-00-899-4751
FSC: 5940
CAGE: 51663 — HYDRO-AIRE AEROSPACE CORP. DBA LEAR ROMEC DIV LEAR ROMEC (USA)
SPECIFICATIONS
materialSTEEL CONDUCTOR ACCOMMODATION
overall_height3.031 INCHES3.031 INCHES IN
overall_diameter0.750 INCHES0.750 INCHES IN
special_featuresRETAINING RING MTGRETAINING RING MTG
basic_shape_styleTUBULAR, ROUNDTUBULAR, ROUND
surface_treatmentNICKEL CONDUCTOR ACCOMMODATION SINGLE LAYER
mounting_method_stylePRESS FITPRESS FIT
major_bushing_diameter0.750 INCHES0.750 INCHES IN
minor_bushing_diameter0.703 INCHES0.703 INCHES IN
electrical_insulation_featureINSULATING MOUNTING BUSHINGINSULATING MOUNTING BUSHING
NSN5940-00-899-4751
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TERMINAL,FEEDTHRU TITLE COMPONENT PN RB21389 MFR TERMINAL,FEEDTHRU
KEY FEATURES
•
MATERIAL: GLASS INSULATION
•
ELECTRICAL INSULATION FEATURE: INSULATING MOUNTING BUSHINGINSULATING MOUNTING BUSHING
•
MAJOR BUSHING DIAMETER: 0.750 INCHES0.750 INCHES IN
•
BASIC SHAPE STYLE: TUBULAR, ROUNDTUBULAR, ROUND
•
OVERALL DIAMETER: 0.750 INCHES0.750 INCHES IN
•
MOUNTING METHOD STYLE: PRESS FITPRESS FIT
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESRETAINING RING MTGRETAINING RING MTG
MATERIALGLASS INSULATION
ELECTRICAL INSULATION FEATUREINSULATING MOUNTING BUSHINGINSULATING MOUNTING BUSHING
MAJOR BUSHING DIAMETER0.750 INCHES0.750 INCHES IN
BASIC SHAPE STYLETUBULAR, ROUNDTUBULAR, ROUND
MATERIALSTEEL CONDUCTOR ACCOMMODATION
OVERALL DIAMETER0.750 INCHES0.750 INCHES IN
MOUNTING METHOD STYLEPRESS FITPRESS FIT
MINOR BUSHING DIAMETER0.703 INCHES0.703 INCHES IN
SURFACE TREATMENTNICKEL CONDUCTOR ACCOMMODATION SINGLE LAYER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
10093850Interchangeable
interchangeable cross-reference
interchangeable
201060013Interchangeable
interchangeable cross-reference
interchangeable
10056008918Interchangeable
interchangeable cross-reference
interchangeable
26740Interchangeable
interchangeable cross-reference
interchangeable
A10243Interchangeable
interchangeable cross-reference
interchangeable
36122Interchangeable
36122
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RB21389?
RB21389 is a TERMINAL,FEEDTHRU.
What parts can replace RB21389?
There are 6 known substitutes for RB21389: 10093850, 201060013, 10056008918 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RB21389?
RB21389 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-00-899-4751. 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