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1504385 — COVER,ELECTRONIC COMMUNICATION E

✓ Government record, cited
3M · MRO · MRO_GENERAL
PRODUCT OVERVIEW

1504385: COVER,ELECTRONIC COMMUNICATION E.

COVER,ELECTRONIC COMMUNICATION E. Key specifications include material: ALUMINUM, overall_width: 5.688 INCHES MINIMUM AND 5.750 INCHES MAXIMUM IN, overall_height: 5.062 INCHES MINIMUM AND 5.078 INCHES MAXIMUM IN, overall_length: 9.750 INCHES NOMINAL IN, surface_treatment: ENAMEL. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-394-8743, 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→ 1504385
NSN: 3120-00-394-8743
NIINs: 003948743, 007718715
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM
overall_width5.688 INCHES MINIMUM AND 5.750 INCHES MAXIMUM IN
overall_height5.062 INCHES MINIMUM AND 5.078 INCHES MAXIMUM IN
overall_length9.750 INCHES NOMINAL IN
surface_treatmentENAMEL
NSN3120-00-394-8743
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 1504385 · 3M ⚠ 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1504385?
1504385 is a COVER,ELECTRONIC COMMUNICATION E manufactured by 3M. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 1504385?
1504385 is cataloged in the U.S. Government catalog under NSN 3120-00-394-8743. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.