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L01972 — RETAINER,CAPACITOR

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

L01972: RETAINER,CAPACITOR.

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: METAL, overall_height: 4.125 INCHES NOMINAL IN, overall_length: 1.375 INCHES MAXIMUM IN, style_designator: HOOK, FOOTED HOLE MOUNTING, criticality_code_justification: FEAT, unthreaded_mounting_hole_diameter: UNABLE TO DECODE. This part is cataloged in the U.S.

Government catalog under NSN 5910-01-015-3631, 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→ L01972
NSN: 5910-01-015-3631
FSC: 5910 — Capacitors
CAGE: 16236 — DLA LAND AND MARITIME DBA ENGINEERING AND TECHNICAL SUPPORT DIV DOCUMENT STANDARDIZATION DIVISION (VENDOR ITEM DRAWINGS) (USA)
SPECIFICATIONS
materialMETAL
overall_height4.125 INCHES NOMINAL IN
overall_length1.375 INCHES MAXIMUM IN
special_featuresITEM MUST COMPLY WITH REQUIREMENTS OF DEFENSE ELECTRONICS SUPPLY CENTER PRODUCTION STANDARD NO. L01972 FOR NAVY NUCLEAR PROPULSION PLANT PRODUCTS ONLY
style_designatorHOOK, FOOTED HOLE MOUNTING
criticality_code_justificationFEAT
unthreaded_mounting_hole_diameterUNABLE TO DECODE
mounting_facility_type_and_quantityUNABLE TO DECODE
accommodated_item_securing_device_typeFRICTION FASTENER
distance_between_mounting_facility_centersUNABLE TO DECODE
NSN5910-01-015-3631
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RETAINER,CAPACITOR TITLE COMPONENT PN L01972 MFR RETAINER,CAPACITOR
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: UNABLE TO DECODE
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
UNTHREADED MOUNTING HOLE DIAMETER: UNABLE TO DECODE
•
STYLE DESIGNATOR: HOOK, FOOTED HOLE MOUNTING
•
ACCOMMODATED ITEM SECURING DEVICE TYPE: FRICTION FASTENER
•
DISTANCE BETWEEN MOUNTING FACILITY CENTERS: UNABLE TO DECODE
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
MOUNTING FACILITY TYPE AND QUANTITYUNABLE TO DECODE
OVERALL HEIGHT4.125 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONFEAT
UNTHREADED MOUNTING HOLE DIAMETERUNABLE TO DECODE
STYLE DESIGNATORHOOK, FOOTED HOLE MOUNTING
OVERALL LENGTH1.375 INCHES MAXIMUM IN
ACCOMMODATED ITEM SECURING DEVICE TYPEFRICTION FASTENER
DISTANCE BETWEEN MOUNTING FACILITY CENTERSUNABLE TO DECODE
SPECIAL FEATURESITEM MUST COMPLY WITH REQUIREMENTS OF DEFENSE ELECTRONICS SUPPLY CENTER PRODUCTION STANDARD NO. L01972 FOR NAVY NUCLEAR PROPULSION PLANT PRODUCTS ONLY
MATERIALMETAL
OTHER ITEMS IN FSC 5910 — Capacitors
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5910-00-000-1038 5910-00-000-1049 5910-00-000-1080 5910-00-000-6838 5910-00-001-1913 5910-00-001-2576 5910-00-001-2577 5910-00-001-2578
SUBSTITUTES & CROSS-REFERENCES 1
CQ072FD4Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is L01972?
L01972 is a RETAINER,CAPACITOR. It is classified as a MRO (MRO_GENERAL).
What parts can replace L01972?
There is 1 known substitute for L01972: CQ072FD4. Substitute compatibility should be verified for your specific system.
What is the NSN for L01972?
L01972 is cataloged in the U.S. Government catalog under NSN 5910-01-015-3631. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.