PartsTable
Technical Data Sheet
PartsTable / MRO / 21-1414
21-1414 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

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, head_style: HEXAGON, head_height: 0.203 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.625 INCHES MAXIMUM IN, fastener_length: 0.625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-206-4335, 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→ 21-1414
NSN: 5306-00-206-4335
FSC: 5306
CAGE: 66935 — JOHNSON CONTROLS NAVY SYSTEMS, LLC (USA)
SPECIFICATIONS
materialPLASTIC CASE
head_styleHEXAGON
head_height0.203 INCHES NOMINAL IN
thread_class2A A
thread_length0.625 INCHES MAXIMUM IN
fastener_length0.625 INCHES NOMINAL IN
hardness_rating40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter3.370 INCHES MINIMUM AND 3.380 INCHES MAXIMUM IN
style_designatorCIRCULAR
thread_directionRIGHT-HAND
aperture_diameter3.250 INCHES NOMINAL IN
features_providedFINISHED HEAD
NSN5306-00-206-4335
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 21-1414 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
FASTENER LENGTH: 0.625 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.203 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
FEATURES PROVIDED: FINISHED HEAD
•
THREAD QUANTITY PER INCH: 24
•
MATERIAL: STEEL OVERALL
•
THREAD CLASS: 2A A
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 (FLIS)
NOMINAL THREAD DIAMETER0.312 INCHES IN
FASTENER LENGTH0.625 INCHES NOMINAL IN
HEAD HEIGHT0.203 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
FEATURES PROVIDEDFINISHED HEAD
THREAD QUANTITY PER INCH24
MATERIALSTEEL OVERALL
THREAD CLASS2A A
WIDTH BETWEEN FLATS0.500 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATAA TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
459084Interchangeable
interchangeable cross-reference
interchangeable
150171Interchangeable
interchangeable cross-reference
interchangeable
BAC1503-1470Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
PA5540Interchangeable
interchangeable cross-reference
interchangeable
MC1531FInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21-1414?
21-1414 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21-1414?
There are 15 known substitutes for 21-1414: 459084, 150171, BAC1503-1470 and 12 more. Substitute compatibility should be verified for your specific system.
Is 21-1414 still available?
21-1414 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026