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2006408-1 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2006408-1: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, thickness: 0.125 INCHES NOMINAL IN, hole_diameter: 0.328 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES ALL SURFACES, overall_diameter: 0.750 INCHES NOMINAL IN, special_features: USED ON F-16 NHA 1620-01-234-8655. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-056-2185, 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
2006408-1
NSN: 5310-01-056-2185
FSC: 5310 — Nuts and Washers
CAGE: 6K4C8 — GOODRICH CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
thickness0.125 INCHES NOMINAL IN
hole_diameter0.328 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES ALL SURFACES
overall_diameter0.750 INCHES NOMINAL IN
special_featuresUSED ON F-16 NHA 1620-01-234-8655
surface_treatmentCADMIUM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
criticality_code_justificationSUPP
material_document_and_classificationMIL-S-5626,COND E-4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-056-2185
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2006408-1 · 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: 63.0 MICROINCHES ALL SURFACES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 0.750 INCHES NOMINAL IN
•
SUPPLEMENTARY FEATURES: ITEM IS NOT CSI BUT HAS CRITICAL FEATURE SUCH AS HEAT TREATMENT,SURFACE FINISH,OR MATERIAL TYPE AND SPECIAL INSPECTION REQUIREMENTS SUCH AS MAGNETIC PARTICLE INSPECTION OR FLUORESCENT PENETRANT INSPECTION
•
CRITICALITY CODE JUSTIFICATION: SUPP
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626,COND E-4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER0.750 INCHES NOMINAL IN
SUPPLEMENTARY FEATURESITEM IS NOT CSI BUT HAS CRITICAL FEATURE SUCH AS HEAT TREATMENT,SURFACE FINISH,OR MATERIAL TYPE AND SPECIAL INSPECTION REQUIREMENTS SUCH AS MAGNETIC PARTICLE INSPECTION OR FLUORESCENT PENETRANT INSPECTION
CRITICALITY CODE JUSTIFICATIONSUPP
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626,COND E-4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SPECIAL FEATURESUSED ON F-16 NHA 1620-01-234-8655
SURFACE TREATMENTCADMIUM OVERALL
PERIPHERAL SHAPE STYLEROUND
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 1
5310PL0743593Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 2006408-1?
2006408-1 is a WASHER,FLAT.
What parts can replace 2006408-1?
There is 1 known substitute for 2006408-1: 5310PL0743593. Substitute compatibility should be verified for your specific system.
What is the NSN for 2006408-1?
2006408-1 is cataloged in the U.S. Government catalog under NSN 5310-01-056-2185. This indicates validated use in U.S. government and defense supply chains.
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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.