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A-1218 — CAPACITOR,FIXED,CERAMIC DIELECTR

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

A-1218: CAPACITOR,FIXED,CERAMIC DIELECTR.

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include material: PLASTIC CASE, body_style: W/O MTG FACILITIES, RADIAL TERMINALS, body_length: 0.125 INCHES NOMINAL IN, body_diameter: 0.344 INCHES NOMINAL IN, overall_width: 0.8438 INCHES NOMINAL IN, terminal_length: 1.500 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0583, 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→ A-1218
NSN: 3110-00-100-0583
NIINs: 001000583, 002243803, 003140593, 009057402
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 89925 — ALTEC INDUSTRIES INC EASTERN DIV (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleW/O MTG FACILITIES, RADIAL TERMINALS
body_length0.125 INCHES NOMINAL IN
body_diameter0.344 INCHES NOMINAL IN
overall_width0.8438 INCHES NOMINAL IN
terminal_length1.500 INCHES MINIMUM IN
outside_diameter5.8437 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
reliability_indicatorNOT ESTABLISHED
backface_corner_radius0.1200 INCHES NOMINAL IN
nonderated_operating_temp-10.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
NSN3110-00-100-0583
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A-1218 · 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
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 5.8437 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1200 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
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
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.8438 INCHES NOMINAL IN
OUTSIDE DIAMETER5.8437 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1200 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 8
P29957Reference document
Same NSN cross-reference
Reference document — Secondary reference
ST982Reference document
Same NSN cross-reference
Reference document — Secondary reference
K42584Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
E050628Reference document
Same NSN cross-reference
Reference document — Secondary reference
2182592Reference document
Same NSN cross-reference
Reference document — Secondary reference
103S28Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A-1218?
A-1218 is a CAPACITOR,FIXED,CERAMIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace A-1218?
There are 8 known substitutes for A-1218: P29957, ST982, K42584 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-1218?
A-1218 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0583. This indicates validated use in U.S. government and defense supply chains.
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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.