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6443619-01M1 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6443619-01M1: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include thickness: 6.4 MILLIMETERS NOMINAL MM, hole_diameter: 1.3 MILLIMETERS NOMINAL MM, overall_diameter: 4.0 MILLIMETERS NOMINAL MM, surface_treatment: ZINC OVERALL, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-580-3727, 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
6443619-01M1
NSN: 5310-01-580-3727
FSC: 5310 — Nuts and Washers
CAGE: 54786 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
thickness6.4 MILLIMETERS NOMINAL MM
hole_diameter1.3 MILLIMETERS NOMINAL MM
overall_diameter4.0 MILLIMETERS NOMINAL MM
surface_treatmentZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
surface_treatment_document_and_classificationA-A-59745 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-580-3727
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6443619-01M1 · 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 TREATMENT DOCUMENT AND CLASSIFICATION: A-A-59745 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 4.0 MILLIMETERS NOMINAL MM
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
COLOR: GREEN OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 1.3 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONA-A-59745 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER4.0 MILLIMETERS NOMINAL MM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
COLORGREEN OVERALL
SURFACE TREATMENTZINC OVERALL
PERIPHERAL SHAPE STYLEROUND
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.3 MILLIMETERS NOMINAL MM
THICKNESS6.4 MILLIMETERS NOMINAL MM
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6443619-01M1?
6443619-01M1 is a WASHER,FLAT.
What is the NSN for 6443619-01M1?
6443619-01M1 is cataloged in the U.S. Government catalog under NSN 5310-01-580-3727. This indicates validated use in U.S. government and defense supply chains.
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