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S408 — BASE,ELECTRICAL RELAY

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

S408: BASE,ELECTRICAL RELAY.

The BASE,ELECTRICAL RELAY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, corner_shape: SQUARE ALL CORNERS, overall_length: 0.5000 INCHES NOMINAL IN, inside_diameter: 1.0625 INCHES NOMINAL IN, style_designator: CYLINDRICAL. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-489-4126, 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
S408
NSN: 3120-00-489-4126
NIINs: 004894126, 005307402, 013037846, 014069434
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 70417 — CHRYSLER CORP AMPLEX DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
corner_shapeSQUARE ALL CORNERS
coil_quantity5
overall_length0.5000 INCHES NOMINAL IN
inside_diameter1.0625 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length1.875 INCHES NOMINAL IN
body_inside_diameter0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
coil_helix_directionRIGHT-HAND
body_outside_diameter0.4385 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN
end_item_identificationNHA 1005-01-267-2163,RIFLE,.22 CALIBER,SPECIAL,M82 KIMBER;MIL-R-1296EAPPLIES
NSN3120-00-489-4126
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: S408 · 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
KEY FEATURES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 0.4385 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPLIT, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-5687 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
•
MATERIAL: IRON ALLOY OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER0.4385 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN
STYLE DESIGNATORSPLIT, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5687 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.5000 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
MATERIALIRON ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S408?
S408 is a BASE,ELECTRICAL RELAY.
What is the NSN for S408?
S408 is cataloged in the U.S. Government catalog under NSN 3120-00-489-4126. 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.