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4L — CAPACITOR,FIXED,MICA DIELECTRIC

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

4L: CAPACITOR,FIXED,MICA DIELECTRIC.

CAPACITOR,FIXED,MICA DIELECTRIC. Key specifications include material: PLASTIC CASE, body_style: W/MTG HOLE(S)/SLOT(S), TERMINALS ON OPPOSITE SURFACES, body_width: 1.125 INCHES NOMINAL IN, bore_shape: STRAIGHT, body_height: 0.453 INCHES NOMINAL IN, body_length: 1.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-516-5490, 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→ 4L
NSN: 3110-00-516-5490
NIINs: 005165490, 006437083, 006665603
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: A0005 — BIGLIA & C. SAS (ITA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleW/MTG HOLE(S)/SLOT(S), TERMINALS ON OPPOSITE SURFACES
body_width1.125 INCHES NOMINAL IN
bore_shapeSTRAIGHT
body_height0.453 INCHES NOMINAL IN
body_length1.250 INCHES NOMINAL IN
bore_diameter1.3778 INCHES MINIMUM AND 1.3780 INCHES MAXIMUM IN
overall_width0.6993 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
NSN3110-00-516-5490
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 4L · 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
•
LUBRICATION MATERIAL: GREASE OR OIL LUBRICATING
•
INTERNAL CLEARANCE: 0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
•
SURFACE FINISH: GROUND
•
REFERENCE DATA AND LITERATURE: MIL-B-17931,TABLE 1,INDUSTRY BORE CODE 07
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A295 ASSN STD SINGLE MATERIAL RESPONSE BALL
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
LUBRICATION MATERIALGREASE OR OIL LUBRICATING
INTERNAL CLEARANCE0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
SURFACE FINISHGROUND
REFERENCE DATA AND LITERATUREMIL-B-17931,TABLE 1,INDUSTRY BORE CODE 07
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A295 ASSN STD SINGLE MATERIAL RESPONSE BALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A295 ASSN STD SINGLE MATERIAL RESPONSE INNER RING
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A295 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING
MATERIAL DOCUMENT AND CLASSIFICATIONFF-B-171 MFR REF SINGLE MATERIAL RESPONSE CAGE
OVERALL WIDTH0.6993 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 10
3207Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
6207-JReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
591890Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
BB207Reference document
Same NSN cross-reference
Reference document — Secondary reference
207SReference document
Same NSN cross-reference
Reference document — Design control — primary reference
7848R-35Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 4L?
4L is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4L?
There are 10 known substitutes for 4L: 3207, 6207-J, 591890 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4L?
4L is cataloged in the U.S. Government catalog under NSN 3110-00-516-5490. 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.