PartsTable
Technical Data Sheet
PartsTable / MRO / 591D
591D ✓ 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

CAPACITOR,VARIABLE,GLASS DIELECT. Key specifications include body_width: 1.530 INCHES NOMINAL IN, body_height: 3.000 INCHES NOMINAL IN, body_length: 4.500 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, overall_height: 3.360 INCHES NOMINAL IN, special_features: UNPACKAGED UNIT WEIGHT: LB3.000. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5915-00-904-7050, 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→ 591D
NSN: 5915-00-904-7050
FSC: 5915
CAGE: 28726 — BULOVA TECHNOLOGIES L.L.C. DBA ENVIRONMENTAL SYSTEMS & SVCS (USA)
SPECIFICATIONS
body_width1.530 INCHES NOMINAL IN
body_height3.000 INCHES NOMINAL IN
body_length4.500 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
overall_height3.360 INCHES NOMINAL IN
special_featuresUNPACKAGED UNIT WEIGHT: LB3.000
style_designatorRECTANGULAR TERMINAL/TERMINALS ON ONE SURFACE
operating_temp_range-40.0 TO 75.0 CELSIUS DEGC
load_impedance_per_function2.0 KILOHMS 1ST BAND PASS FIRST FUNCTION
average_life_rating_in_hours10000.0
reference_frequency_per_function76.0 KILOHERTZ 2ND BAND PASS SECOND FUNCTION
unthreaded_mounting_hole_diameter0.160 INCHES NOMINAL IN
NSN5915-00-904-7050
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,GLASS DIELECT TITLE COMPONENT PN 591D MFR CAPACITOR,VARIABLE,GLA
KEY FEATURES
•
AVERAGE LIFE RATING IN HOURS: 10000.0
•
INSERTION LOSS AT REFERENCE FREQUENCY PER FUNCTION IN DECIBELS: 3.0 BLANK LOCATION NOT OTHERWISE SPECIFIED
•
FUNCTIONAL TERMINAL TYPE AND QUANTITY: 2 PIN GROUND THIRD FUNCTION
•
REFERENCE FREQUENCY PER FUNCTION: 72.0 KILOHERTZ 1ST BAND PASS FIRST FUNCTION
•
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH: 3.750 INCHES NOMINAL IN
•
INPUT IMPEDANCE PER FUNCTION W/LOAD: 600.0 OHMS 1ST BAND PASS FIRST FUNCTION
•
LOAD IMPEDANCE PER FUNCTION: 2.0 KILOHMS 2ND BAND PASS SECOND FUNCTION
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
AVERAGE LIFE RATING IN HOURS10000.0
INSERTION LOSS AT REFERENCE FREQUENCY PER FUNCTION IN DECIBELS3.0 BLANK LOCATION NOT OTHERWISE SPECIFIED
FUNCTIONAL TERMINAL TYPE AND QUANTITY2 PIN GROUND THIRD FUNCTION
REFERENCE FREQUENCY PER FUNCTION72.0 KILOHERTZ 1ST BAND PASS FIRST FUNCTION
REFERENCE FREQUENCY PER FUNCTION76.0 KILOHERTZ 2ND BAND PASS SECOND FUNCTION
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH3.750 INCHES NOMINAL IN
INPUT IMPEDANCE PER FUNCTION W/LOAD600.0 OHMS 1ST BAND PASS FIRST FUNCTION
LOAD IMPEDANCE PER FUNCTION2.0 KILOHMS 2ND BAND PASS SECOND FUNCTION
OUTPUT IMPEDANCE PER FUNCTION W/SOURCE ACROSS INPUT2.0 KILOHMS 2ND BAND PASS SECOND FUNCTION
SPECIAL FEATURESUNPACKAGED UNIT WEIGHT: LB3.000
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
7214Interchangeable
interchangeable cross-reference
interchangeable
TBAInterchangeable
interchangeable cross-reference
interchangeable
922-0585-010Interchangeable
interchangeable cross-reference
interchangeable
10785Interchangeable
interchangeable cross-reference
interchangeable
907214Interchangeable
interchangeable cross-reference
interchangeable
20214Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 591D?
591D is a CAPACITOR,VARIABLE,GLASS DIELECT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 591D?
There are 18 known substitutes for 591D: 7214, TBA, 922-0585-010 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 591D?
591D is cataloged in the Federal Logistics Information System (FLIS) under NSN 5915-00-904-7050. 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