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Technical Data Sheet
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12-901 — Technical Data Sheet

✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
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 OVERALL, body_style: W/O MTG FACILITIES, TERMINAL(S) ON ONE END, body_length: 4.375 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS, current_type: DC INPUT, specific_use: WINCH AND CRANE POWER UNIT LONG SHAFT FOR MODEL WA/WL 3000 HD. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-021-3426, 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→ 12-901
NSN: 5340-00-021-3426
FSC: 5340
CAGE: 71279 — INTERCONNECTION PRODUCTS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
body_styleW/O MTG FACILITIES, TERMINAL(S) ON ONE END
body_length4.375 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
current_typeDC INPUT
specific_useWINCH AND CRANE POWER UNIT LONG SHAFT FOR MODEL WA/WL 3000 HD
body_diameter2.000 INCHES NOMINAL IN
overall_depth11.813 INCHES NOMINAL IN
overall_width10.938 INCHES NOMINAL IN
overall_length1.2500 INCHES NOMINAL IN
handle_clearance1.250 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
NSN5340-00-021-3426
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12-901 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE TREATMENT: ANODIZE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL: ALUMINUM ALLOY 2011 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/3,T3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 2.000 INCHES NOMINAL IN
•
MOUNTING FACILITY QUANTITY: 2
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
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)
SPECIAL FEATURESBLACK ANODIZE
SURFACE TREATMENTANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2011 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/3,T3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH2.000 INCHES NOMINAL IN
MOUNTING FACILITY QUANTITY2
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HANDLE CLEARANCE1.250 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.164 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
MT1174ARN30AInterchangeable
interchangeable cross-reference
interchangeable
M10Interchangeable
Ink-M10
interchangeable
014-0008-51-4Interchangeable
interchangeable cross-reference
interchangeable
18-1901-15Interchangeable
interchangeable cross-reference
interchangeable
886-245441X-00Interchangeable
interchangeable cross-reference
interchangeable
10246229Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12-901?
12-901 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 12-901?
There are 17 known substitutes for 12-901: MT1174ARN30A, M10, 014-0008-51-4 and 14 more. Substitute compatibility should be verified for your specific system.
Is 12-901 still available?
12-901 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: September 2026