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1678564 — COUPLING,SHAFT,RIGID

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1678564: COUPLING,SHAFT,RIGID.

The COUPLING,SHAFT,RIGID is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, thickness: 0.125 INCHES NOMINAL IN, bore_shape: STRAIGHT THROUGH BORE, nut_height: 2.250 INCHES NOMINAL IN, bore_length: 3.0000 INCHES NOMINAL THROUGH BORE IN, body_material: STEEL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-479-8924, 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
1678564
NSN: 5310-01-479-8924
NIINs: 014798924, 014804476, 014805305, 014805383, 014805427, 014805660
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thickness0.125 INCHES NOMINAL IN
bore_shapeSTRAIGHT THROUGH BORE
nut_height2.250 INCHES NOMINAL IN
bore_length3.0000 INCHES NOMINAL THROUGH BORE IN
body_materialSTEEL
bore_diameter1.1250 INCHES NOMINAL IN
hole_diameter1.094 INCHES NOMINAL IN
step_quantity4
end_similarityNOT IDENTICAL
overall_length13.250 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES ALL SURFACES
NSN5310-01-479-8924
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1678564 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE FINISH: 125.0 MICROINCHES ALL SURFACES
•
OVERALL DIAMETER: 2.000 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER ALLOY OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 1.094 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES ALL SURFACES
OVERALL DIAMETER2.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATIONHATCH:MARINE HARDXWARE & HULL DOORS
MATERIALCOPPER ALLOY OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.094 INCHES NOMINAL IN
THICKNESS0.125 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
124-1678564 PC 4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1678562Reference 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 1678564?
1678564 is a COUPLING,SHAFT,RIGID.
What parts can replace 1678564?
There are 2 known substitutes for 1678564: 124-1678564 PC 4, 1678562. Substitute compatibility should be verified for your specific system.
What is the NSN for 1678564?
1678564 is cataloged in the U.S. Government catalog under NSN 5310-01-479-8924. This indicates validated use in U.S. government and defense supply chains.
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