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511452 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

511452: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include width: 0.520 INCHES NOMINAL IN, material: ALUMINUM ALLOY 6061 OVERALL, thickness: 0.070 INCHES NOMINAL IN, heat_treatment: T-4 SOLUTION HEAT TREATED, NATURAL AGED, overall_diameter: 0.640 INCHES NOMINAL IN, center_hole_width: 0.141 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-939-2367, 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
511452
NSN: 5310-00-939-2367
FSC: 5310 — Nuts and Washers
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
width0.520 INCHES NOMINAL IN
materialALUMINUM ALLOY 6061 OVERALL
thickness0.070 INCHES NOMINAL IN
heat_treatmentT-4 SOLUTION HEAT TREATED, NATURAL AGED
overall_diameter0.640 INCHES NOMINAL IN
center_hole_width0.141 INCHES NOMINAL IN
center_hole_length0.280 INCHES MINIMUM AND 0.284 INCHES MAXIMUM IN
peripheral_shape_styleDEE
center_hole_shape_styleRECTANGULAR
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationAMS 4027 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-939-2367
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 511452 · 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
•
CENTER HOLE WIDTH: 0.141 INCHES NOMINAL IN
•
CENTER HOLE LENGTH: 0.280 INCHES MINIMUM AND 0.284 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.640 INCHES NOMINAL IN
•
HEAT TREATMENT: T-4 SOLUTION HEAT TREATED, NATURAL AGED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4027 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: DEE
•
WIDTH: 0.520 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CENTER HOLE WIDTH0.141 INCHES NOMINAL IN
CENTER HOLE LENGTH0.280 INCHES MINIMUM AND 0.284 INCHES MAXIMUM IN
OVERALL DIAMETER0.640 INCHES NOMINAL IN
HEAT TREATMENTT-4 SOLUTION HEAT TREATED, NATURAL AGED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4027 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEDEE
WIDTH0.520 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 6061 OVERALL
CENTER HOLE SHAPE STYLERECTANGULAR
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: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 511452?
511452 is a WASHER,FLAT.
What is the NSN for 511452?
511452 is cataloged in the U.S. Government catalog under NSN 5310-00-939-2367. 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.