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C3521-3PC104 — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

C3521-3PC104: CONNECTOR,RECEPTACLE,ELECTRICAL.

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include cover: NOT PROVIDED, width: 1.000 INCHES IN, length: 2.000 INCHES IN, material: ALUMINUM, unit_type: TOGGLE SWITCH, overall_width: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-036-3190, 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
C3521-3PC104
NSN: 3120-00-036-3190
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 37999 — EX-CELL-O CORP MACHINE TOOL PRODUCTS DIV (USA)
SPECIFICATIONS
coverNOT PROVIDED
width1.000 INCHES IN
length2.000 INCHES IN
materialALUMINUM
unit_typeTOGGLE SWITCH
gang_quantity1
overall_width0.250 INCHES NOMINAL IN
overall_height0.625 INCHES NOMINAL IN
overall_length0.618 INCHES NOMINAL IN
insert_materialPLASTIC POLYAMIDE NYLON SINGLE MATING END
contact_materialCOPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING
opening_quantity1
NSN3120-00-036-3190
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: C3521-3PC104 · 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
SUBSTITUTES & CROSS-REFERENCES 9
C3521-1PC104Reference document
Same NSN cross-reference
Reference document — Secondary reference
C3522-3PC104Reference document
Same NSN cross-reference
Reference document — Secondary reference
C3360-1PC104Reference document
Same NSN cross-reference
Reference document — Secondary reference
C4102-1PC104Reference document
Same NSN cross-reference
Reference document — Secondary reference
C3440-3PC104Reference document
Same NSN cross-reference
Reference document — Secondary reference
C3457-3PC104Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is C3521-3PC104?
C3521-3PC104 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace C3521-3PC104?
There are 9 known substitutes for C3521-3PC104: C3521-1PC104, C3522-3PC104, C3360-1PC104 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C3521-3PC104?
C3521-3PC104 is cataloged in the U.S. Government catalog under NSN 3120-00-036-3190. 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.