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259309-3 — CAPACITOR,VARIABLE,AIR DIELECTRI

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

259309-3: CAPACITOR,VARIABLE,AIR DIELECTRI.

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include body_width: 0.325 INCHES MAXIMUM IN, body_height: 1.247 INCHES MINIMUM AND 1.253 INCHES MAXIMUM IN, body_length: 1.255 INCHES MAXIMUM IN, special_features: SOURCE CONTROL DRAWING; WEAPON SYSTEM ESSENTIAL, end_item_identification: AIRCRAFT, HORNET F/A-18; AIRCRAFT, HARRIER AV-8B, inclosure_configuration: FLAT PACK. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-293-8997, 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
259309-3
NSN: 3110-00-293-8997
NIINs: 002938997, 011506764
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 89222 — BLUE BIRD BODY CO (USA)
SPECIFICATIONS
body_width0.325 INCHES MAXIMUM IN
body_height1.247 INCHES MINIMUM AND 1.253 INCHES MAXIMUM IN
body_length1.255 INCHES MAXIMUM IN
special_featuresSOURCE CONTROL DRAWING; WEAPON SYSTEM ESSENTIAL
end_item_identificationAIRCRAFT, HORNET F/A-18; AIRCRAFT, HARRIER AV-8B
inclosure_configurationFLAT PACK
design_function_and_quantity1 AMPLIFIER, POWER
criticality_code_justificationFEAT
NSN3110-00-293-8997
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 259309-3 · 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
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
SUBSTITUTES & CROSS-REFERENCES 9
TMHM212011Reference document
Same NSN cross-reference
Reference document — Secondary reference
P6578Reference document
Same NSN cross-reference
Reference document — Secondary reference
090-07284Reference document
Same NSN cross-reference
Reference document — Secondary reference
HM212011Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
P232383-31Reference document
Same NSN cross-reference
Reference document — Secondary reference
K-500-CH-1923Reference 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 259309-3?
259309-3 is a CAPACITOR,VARIABLE,AIR DIELECTRI.
What parts can replace 259309-3?
There are 9 known substitutes for 259309-3: TMHM212011, P6578, 090-07284 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 259309-3?
259309-3 is cataloged in the U.S. Government catalog under NSN 3110-00-293-8997. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.