PartsTable
Technical Data Sheet
Download PDF

21-1530 — CAPACITOR,FIXED,ELECTROLYTIC

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

21-1530: 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: STEEL OUTER RING, bore_shape: STRAIGHT, body_length: 3.671 INCHES NOMINAL IN, bulb_length: 2.660 INCHES NOMINAL IN, bore_diameter: 45.00 MILLIMETERS NOMINAL MM, bulb_diameter: 0.616 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-144-8669, 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→ 21-1530
NSN: 3110-00-144-8669
NIINs: 001448669, 005384922, 010832315, 011418330, 014254314
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 92392 — ALLIS-CHALMERS CORP (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
bore_shapeSTRAIGHT
body_length3.671 INCHES NOMINAL IN
bulb_length2.660 INCHES NOMINAL IN
bore_diameter45.00 MILLIMETERS NOMINAL MM
bulb_diameter0.616 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN
overall_width25.0 MILLIMETERS NOMINAL MM
terminal_typeTAB W/SCREW
thread_length0.625 INCHES NOMINAL SINGLE THREADED BUSHING IN
load_directionRADIAL
overall_length6.370 INCHES NOMINAL IN
surface_finishGROUND
NSN3110-00-144-8669
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 21-1530 · 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
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 100.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
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
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH25.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER100.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE DIAMETER45.00 MILLIMETERS NOMINAL MM
MATERIALSTEEL OUTER RING
SUBSTITUTES & CROSS-REFERENCES 9
131-309-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
ST293Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
309Reference document
Same NSN cross-reference
Reference document — Secondary reference
3309X1AReference document
Same NSN cross-reference
Reference document — Secondary reference
GTB19059Reference document
Same NSN cross-reference
Reference document — Secondary reference
279619-47Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
Ready to buy 21-1530?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 21-1530?
21-1530 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21-1530?
There are 9 known substitutes for 21-1530: 131-309-3, ST293, 309 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21-1530?
21-1530 is cataloged in the U.S. Government catalog under NSN 3110-00-144-8669. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 21-1530