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654619 — COUPLING ASSY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

654619: COUPLING ASSY.

The COUPLING ASSY is a the manufacturer industrial component. Key specifications include diameter: 0.312 INCHES NOMINAL IN, material: STEEL OVERALL, overall_length: 1.375 INCHES NOMINAL IN, style_designator: SLOTTED, surface_treatment: PRIMER OVERALL, material_thickness: 0.094 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-128-9979, 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
654619
NSN: 5315-00-128-9979
NIINs: 001289979, 003893470
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 77237 — DANA OFF HIGHWAY PRODUCTS, LLC (USA)
SPECIFICATIONS
diameter0.312 INCHES NOMINAL IN
materialSTEEL OVERALL
overall_length1.375 INCHES NOMINAL IN
style_designatorSLOTTED
surface_treatmentPRIMER OVERALL
material_thickness0.094 INCHES NOMINAL IN
NSN5315-00-128-9979
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 654619 · 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
•
STYLE DESIGNATOR: SLOTTED
•
DIAMETER: 0.312 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.094 INCHES NOMINAL IN
•
SURFACE TREATMENT: PRIMER OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSLOTTED
DIAMETER0.312 INCHES NOMINAL IN
OVERALL LENGTH1.375 INCHES NOMINAL IN
MATERIAL THICKNESS0.094 INCHES NOMINAL IN
SURFACE TREATMENTPRIMER OVERALL
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 654619?
654619 is a COUPLING ASSY.
What is the NSN for 654619?
654619 is cataloged in the U.S. Government catalog under NSN 5315-00-128-9979. 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.