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Technical Data Sheet
PartsTable / MRO / D33191
D33191 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The CAPACITOR,FIXED,ELECTROLYTIC 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: COPPER ALLOY, end_style: VERTEX BELOW CENTER, thickness: 0.188 INCHES NOMINAL IN, anode_type: PLAIN FOIL, body_style: W/O MTG FACILITIES, AXIAL TERMINALS, ring_style: STRAIGHT GAP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-282-0074, 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→ D33191
NSN: 5325-00-282-0074
FSC: 5325
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY
end_styleVERTEX BELOW CENTER
thickness0.188 INCHES NOMINAL IN
anode_typePLAIN FOIL
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
ring_styleSTRAIGHT GAP
body_length2.250 INCHES NOMINAL IN
usage_designINTERNAL
body_diameter0.687 INCHES NOMINAL IN
overall_length0.625 INCHES NOMINAL IN
inside_diameter2.593 INCHES NOMINAL IN
major_thickness0.095 INCHES NOMINAL IN
NSN5325-00-282-0074
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: D33191 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: STEEL COMP 1062
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI,NO. C1062 ASSN STD SINGLE MATERIAL RESPONSE
•
USAGE DESIGN: INTERNAL
•
OUTSIDE DIAMETER: 2.656 INCHES NOMINAL IN
•
END STYLE: VERTEX BELOW CENTER
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MAJOR THICKNESS: 0.095 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
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)
MATERIALSTEEL COMP 1062
MATERIAL DOCUMENT AND CLASSIFICATIONAISI,NO. C1062 ASSN STD SINGLE MATERIAL RESPONSE
USAGE DESIGNINTERNAL
OUTSIDE DIAMETER2.656 INCHES NOMINAL IN
END STYLEVERTEX BELOW CENTER
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.095 INCHES NOMINAL IN
MATERIAL HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
CASEHARDENING INDICATORNOT CASEHARDENED
INSIDE DIAMETER2.593 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
0180-0110Interchangeable
interchangeable cross-reference
interchangeable
D33191Interchangeable
interchangeable cross-reference
interchangeable
BF953Interchangeable
interchangeable cross-reference
interchangeable
FDSA10C1Interchangeable
interchangeable cross-reference
interchangeable
74611BInterchangeable
interchangeable cross-reference
interchangeable
416821-66DInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D33191?
D33191 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace D33191?
There are 14 known substitutes for D33191: 0180-0110, D33191, BF953 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D33191?
D33191 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-282-0074. 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