PartsTable
Technical Data Sheet
PartsTable / COMPONENT / G5-257
G5-257 ✓ Verified by PartsTable
— · BALL BEARING
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 end_item_identification: FAUCET,SEXAUR,4 IN. CENTERSET METERING UNITS,SERIES 1-31 IN, nonsupply_items_and_quantities: H/C MOUNTING W/O HANDLE 1; ADJUSTING PIECE 1.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-367-0903, 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
G5-257
NSN: 3120-00-367-0903
FSC: 3120
CAGE: 64731 — WESTERN SKY INDUSTRIES INC DBA ELECTROMECH TECHOLOGIES (USA)
SPECIFICATIONS
component_quantity2
end_item_identificationFAUCET,SEXAUR,4 IN. CENTERSET METERING UNITS,SERIES 1-31 IN
nonsupply_items_and_quantitiesH/C MOUNTING W/O HANDLE 1; ADJUSTING PIECE 1
NSN3120-00-367-0903
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: G5-257 · 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 3
7582Interchangeable
interchangeable cross-reference
interchangeable
G5-257Interchangeable
interchangeable cross-reference
interchangeable
073122Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G5-257?
G5-257 is a CAPACITOR,FIXED,ELECTROLYTIC.
What parts can replace G5-257?
There are 3 known substitutes for G5-257: 7582, G5-257, 073122. Substitute compatibility should be verified for your specific system.
What is the NSN for G5-257?
G5-257 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-367-0903. 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