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Technical Data Sheet
PartsTable / MRO / 148 3-4
148 3-4 ✓ Verified by PartsTable
Melissa & Doug · 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

Here is everything your fire fighter needs in an emergency: a bright red, machine-washable jacket trimmed with reflective material, a fire chief helmet, a "fire extinguisher", a bullhorn with sound effects, a shiny badge and a name tag for personalizing. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-00-489-4987, 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→ 148 3-4
NSN: 3130-00-489-4987
FSC: 3130
CAGE: 80755 — RANDALL BEARING INC (USA)
SPECIFICATIONS
materialSTEEL FRAME
body_stylePLATE-MESHING
shaft_typeROUND, SLOTTED SINGLE SHAFT
body_length0.906 INCHES NOMINAL IN
shaft_length0.156 INCHES NOMINAL SINGLE SHAFT IN
overall_width0.781 INCHES NOMINAL IN
terminal_typeCONNECTOR, RECEPTACLE
inclosure_typeUNINCLOSED
overall_height0.906 INCHES NOMINAL IN
overall_length1.062 INCHES NOMINAL IN
shaft_diameter0.187 INCHES NOMINAL SINGLE SHAFT IN
mounting_methodBRACKET(S)
NSN3130-00-489-4987
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 148 3-4 · Melissa & Doug ⚠ 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 8
MS5008-40Interchangeable
interchangeable cross-reference
interchangeable
28983Interchangeable
interchangeable cross-reference
interchangeable
62571Interchangeable
interchangeable cross-reference
interchangeable
148-3-4Interchangeable
interchangeable cross-reference
interchangeable
103987R91Interchangeable
interchangeable cross-reference
interchangeable
776R6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 148 3-4?
148 3-4 is a CAPACITOR,VARIABLE,AIR DIELECTRI manufactured by Melissa & Doug. It is classified as a MRO (MRO_GENERAL).
What parts can replace 148 3-4?
There are 8 known substitutes for 148 3-4: MS5008-40, 28983, 62571 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 148 3-4?
148 3-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-00-489-4987. 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