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Technical Data Sheet
PartsTable / MRO / 19938-5
19938-5 ✓ 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

The RETAINER,CAPACITOR is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include material: STEEL, overall_height: 0.750 INCHES NOMINAL IN, inside_diameter: 1.375 INCHES NOMINAL IN, style_designator: DOUBLE FOOT, SCREW CLAMP, surface_treatment: CADMIUM, mounting_slot_width: UNABLE TO DECODE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-01-023-5522, 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→ 19938-5
NSN: 5910-01-023-5522
FSC: 5910
CAGE: 09004 — TRANSISTOR DEVICES INC DIV ASTRODYNE TDI HIGH POWER BUSINESS UNIT (USA)
SPECIFICATIONS
materialSTEEL
overall_height0.750 INCHES NOMINAL IN
inside_diameter1.375 INCHES NOMINAL IN
style_designatorDOUBLE FOOT, SCREW CLAMP
surface_treatmentCADMIUM
mounting_slot_widthUNABLE TO DECODE
mounting_slot_lengthUNABLE TO DECODE
mounting_facility_type_and_quantityUNABLE TO DECODE
accommodated_item_securing_device_typeCLAMP
distance_between_mounting_facility_centersUNABLE TO DECODE
surface_treatment_document_and_classificationQQ-P-416,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE
distance_from_retainer_center_to_centerline_of_mounting_facility0.890 INCHES NOMINAL IN
NSN5910-01-023-5522
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RETAINER,CAPACITOR TITLE COMPONENT PN 19938-5 MFR RETAINER,CAPACITOR
KEY FEATURES
•
INSIDE DIAMETER: 1.375 INCHES NOMINAL IN
•
DISTANCE BETWEEN MOUNTING FACILITY CENTERS: UNABLE TO DECODE
•
MOUNTING SLOT LENGTH: UNABLE TO DECODE
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE
•
MOUNTING FACILITY TYPE AND QUANTITY: UNABLE TO DECODE
•
STYLE DESIGNATOR: DOUBLE FOOT, SCREW CLAMP
•
MATERIAL: STEEL
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)
OVERALL HEIGHT0.750 INCHES NOMINAL IN
INSIDE DIAMETER1.375 INCHES NOMINAL IN
DISTANCE BETWEEN MOUNTING FACILITY CENTERSUNABLE TO DECODE
MOUNTING SLOT LENGTHUNABLE TO DECODE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE
MOUNTING FACILITY TYPE AND QUANTITYUNABLE TO DECODE
STYLE DESIGNATORDOUBLE FOOT, SCREW CLAMP
MATERIALSTEEL
SURFACE TREATMENTCADMIUM
DISTANCE FROM RETAINER CENTER TO MOUNTING FACILITY CENTER AT LOOP TIGHTENING DEVICE0.890 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
203909Interchangeable
interchangeable cross-reference
interchangeable
303111Interchangeable
interchangeable cross-reference
interchangeable
223909Interchangeable
interchangeable cross-reference
interchangeable
303617Interchangeable
interchangeable cross-reference
interchangeable
0303617Interchangeable
interchangeable cross-reference
interchangeable
307403Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 19938-5?
19938-5 is a RETAINER,CAPACITOR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 19938-5?
There are 17 known substitutes for 19938-5: 203909, 303111, 223909 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 19938-5?
19938-5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-01-023-5522. 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