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3435A4PC78 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3435A4PC78: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include length: 0.945 INCHES NOMINAL IN, material: COPPER ALLOY OVERALL, thickness: 0.185 INCHES NOMINAL IN, hole_diameter: 0.550 INCHES NOMINAL IN, width_across_flats: 0.810 INCHES NOMINAL IN, peripheral_shape_style: RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-469-1306, 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
3435A4PC78
NSN: 5310-00-469-1306
FSC: 5310 — Nuts and Washers
CAGE: 80212 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
length0.945 INCHES NOMINAL IN
materialCOPPER ALLOY OVERALL
thickness0.185 INCHES NOMINAL IN
hole_diameter0.550 INCHES NOMINAL IN
width_across_flats0.810 INCHES NOMINAL IN
peripheral_shape_styleRECTANGULAR
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-469-1306
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3435A4PC78 · 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
•
WIDTH ACROSS FLATS: 0.810 INCHES NOMINAL IN
•
LENGTH: 0.945 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: RECTANGULAR
•
MATERIAL: COPPER ALLOY OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.550 INCHES NOMINAL IN
•
THICKNESS: 0.185 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.810 INCHES NOMINAL IN
LENGTH0.945 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLERECTANGULAR
MATERIALCOPPER ALLOY OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.550 INCHES NOMINAL IN
THICKNESS0.185 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3435A4PC78?
3435A4PC78 is a WASHER,FLAT.
What is the NSN for 3435A4PC78?
3435A4PC78 is cataloged in the U.S. Government catalog under NSN 5310-00-469-1306. 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.