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123-1680561 — DOG,DOOR,MARINE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

123-1680561: DOG,DOOR,MARINE.

The DOG,DOOR,MARINE is a the manufacturer industrial component. Key specifications include diameter: 0.125 INCHES NOMINAL IN, material: STEEL COMP 8620 OVERALL, head_style: HEXAGON, head_height: 0.562 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS, flange_width: 1.2500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-481-2406, 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
123-1680561
NSN: 3120-01-481-2406
NIINs: 014812406, 014812425, 014813137, 014813304, 014813345, 014815103
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
diameter0.125 INCHES NOMINAL IN
materialSTEEL COMP 8620 OVERALL
head_styleHEXAGON
head_height0.562 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
flange_width1.2500 INCHES NOMINAL IN
thread_class3A A
thread_length0.688 INCHES NOMINAL IN
overall_length1.3125 INCHES NOMINAL IN
shoulder_shapeROUND OVERALL
fastener_length5.000 INCHES NOMINAL IN
shoulder_length3.750 INCHES NOMINAL FIRST SHOULDER IN
NSN3120-01-481-2406
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 123-1680561 · 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: 0.6880 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 0.5015 INCHES NOMINAL IN
•
MATERIAL: LUBRICANT LUBRICATION
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER0.6880 INCHES NOMINAL IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH0.6250 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.5015 INCHES NOMINAL IN
END ITEM IDENTIFICATIONDOOR ASSY-VSW
MATERIALLUBRICANT LUBRICATION
MATERIALCOPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
123-1680561 PC 11Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
123-1680562Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 123-1680561?
123-1680561 is a DOG,DOOR,MARINE.
What parts can replace 123-1680561?
There are 2 known substitutes for 123-1680561: 123-1680561 PC 11, 123-1680562. Substitute compatibility should be verified for your specific system.
What is the NSN for 123-1680561?
123-1680561 is cataloged in the U.S. Government catalog under NSN 3120-01-481-2406. 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.