PartsTable
Technical Data Sheet
PartsTable / MRO / 20-77
20-77 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
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 color: YELLOW OVERALL, width: 0.375 INCHES NOMINAL IN, length: 1.500 INCHES NOMINAL IN, material: NYLON (USE PCP000) BODY, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, thickness: 1.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-00-204-5448, 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→ 20-77
NSN: 3130-00-204-5448
FSC: 3130
CAGE: 03533 — CRANE CARRIER COMPANY, LLC (USA)
SPECIFICATIONS
colorYELLOW OVERALL
width0.375 INCHES NOMINAL IN
length1.500 INCHES NOMINAL IN
materialNYLON (USE PCP000) BODY
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
thickness1.000 INCHES NOMINAL IN
anode_typePLAIN FOIL
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
body_width1.750 INCHES NOMINAL IN
roll_width5.500 INCHES NOMINAL IN
body_height2.437 INCHES NOMINAL IN
body_length1.219 INCHES NOMINAL IN
NSN3130-00-204-5448
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 20-77 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
3522Interchangeable
interchangeable cross-reference
interchangeable
831-63-811Interchangeable
interchangeable cross-reference
interchangeable
318M0007P001Interchangeable
interchangeable cross-reference
interchangeable
803-1385835PC-15-16-17Interchangeable
interchangeable cross-reference
interchangeable
810-1385835PC17-18-20-32-33Interchangeable
interchangeable cross-reference
interchangeable
20770001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20-77?
20-77 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 20-77?
There are 15 known substitutes for 20-77: 3522, 831-63-811, 318M0007P001 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20-77?
20-77 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-00-204-5448. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026