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2-300-031 — CAPACITOR,FIXED,ELECTROLYTIC

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

2-300-031: CAPACITOR,FIXED,ELECTROLYTIC.

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: PLASTIC CASE, anode_type: SOLID, body_style: W/O MTG FACILITIES, TERMINAL(S) ON ONE END, bore_shape: STRAIGHT, body_length: 0.350 INCHES MAXIMUM IN, body_diameter: 0.175 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-863-1195, 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→ 2-300-031
NSN: 3110-00-863-1195
NIINs: 008631195, 011415334, 016008573, 016107112
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 99193 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - PHOENIX (USA)
SPECIFICATIONS
materialPLASTIC CASE
anode_typeSOLID
body_styleW/O MTG FACILITIES, TERMINAL(S) ON ONE END
bore_shapeSTRAIGHT
body_length0.350 INCHES MAXIMUM IN
body_diameter0.175 INCHES MAXIMUM IN
bore_diameter0.9843 INCHES NOMINAL IN
overall_width0.3543 INCHES NOMINAL IN
load_directionRADIAL
surface_finishGROUND
terminal_length0.187 INCHES NOMINAL IN
special_featuresSAE 12 THREADS
NSN3110-00-863-1195
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 2-300-031 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
RETAINER FABRICATION METHOD: MACHINED
•
INTERNAL CLEARANCE: 0.0040 INCHES MINIMUM AXIAL AND 0.0060 INCHES MAXIMUM AXIAL AND 0.0003 INCHES MINIMUM RADIAL AND 0.0009 INCHES MAXIMUM RADIAL IN
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: -3905,91547 MFR REF SINGLE MATERIAL RESPONSE RETAINER
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
RETAINER FABRICATION METHODMACHINED
INTERNAL CLEARANCE0.0040 INCHES MINIMUM AXIAL AND 0.0060 INCHES MAXIMUM AXIAL AND 0.0003 INCHES MINIMUM RADIAL AND 0.0009 INCHES MAXIMUM RADIAL IN
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIAL DOCUMENT AND CLASSIFICATION-3905,91547 MFR REF SINGLE MATERIAL RESPONSE RETAINER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6440/7440 81343 ASSN STD SINGLE MATERIAL RESPONSE BALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6441 81343 ASSN STD SINGLE MATERIAL RESPONSE INNER RING
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6441 81343 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING
OVERALL WIDTH0.3543 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER1.6535 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 8
1905S305Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-300-031-02Reference document
Same NSN cross-reference
Reference document — Secondary reference
RM9305KMBRE8682Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-300-031-01Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
D3-50141Reference document
Same NSN cross-reference
Reference document — Secondary reference
HKB005-158Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2-300-031?
2-300-031 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 2-300-031?
There are 8 known substitutes for 2-300-031: 1905S305, 2-300-031-02, RM9305KMBRE8682 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2-300-031?
2-300-031 is cataloged in the U.S. Government catalog under NSN 3110-00-863-1195. This indicates validated use in U.S. government and defense supply chains.
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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.