PartsTable
Technical Data Sheet
90503 ✓ 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 MICROCIRCUIT,MEMORY is a the manufacturer memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. Key specifications include shape: RIGHT ANGLE, material: NYLON (USE PCP000) BODY, lens_color: COLORLESS, memory_capacity: 256 WORDS X 4 BITS, special_features: PROM WITH UNCOMMITED COLLECTOR, features_provided: ELECTROSTATIC SENSITIVE AND BURN 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 3120-01-051-9938, 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
90503
NSN: 3120-01-051-9938
FSC: 3120
CAGE: 24975 — PRESTOLITE ELECTRIC INC (USA)
SPECIFICATIONS
shapeRIGHT ANGLE
materialNYLON (USE PCP000) BODY
lens_colorCOLORLESS
memory_capacity256 WORDS X 4 BITS
special_featuresPROM WITH UNCOMMITED COLLECTOR
features_providedELECTROSTATIC SENSITIVE AND BURN IN
memory_device_typeROM
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
end_item_identificationDAMAGE CONTROL REP STATION TOOLS X EQUIP (2DCRS)
inclosure_configurationFLAT PACK
terminal_type_and_quantity16 FLAT LEADS
battery_type_and_quantity_required4 DRY
NSN3120-01-051-9938
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 90503 · 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
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
NP5002013Interchangeable
interchangeable cross-reference
interchangeable
NP5008013Interchangeable
interchangeable cross-reference
interchangeable
90-503Interchangeable
interchangeable cross-reference
interchangeable
CC5193-975WInterchangeable
interchangeable cross-reference
interchangeable
HAC820-975Interchangeable
interchangeable cross-reference
interchangeable
932684-505Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 90503?
90503 is a MICROCIRCUIT,MEMORY.
What parts can replace 90503?
There are 8 known substitutes for 90503: NP5002013, NP5008013, 90-503 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 90503?
90503 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-051-9938. This indicates validated use in U.S. government and defense supply chains.
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