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543-3330-002 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

543-3330-002: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thickness: 0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN, hole_diameter: 0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN, hardness_rating: 50.0 ROCKWELL C NOMINAL, overall_diameter: 0.812 INCHES NOMINAL IN, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-680-5359, 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
543-3330-002
NSN: 5310-00-680-5359
FSC: 5310 — Nuts and Washers
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thickness0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
hole_diameter0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
hardness_rating50.0 ROCKWELL C NOMINAL
overall_diameter0.812 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classification-QQ-A-763 CL 440 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-680-5359
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 543-3330-002 · 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
•
OVERALL DIAMETER: 0.812 INCHES NOMINAL IN
•
HARDNESS RATING: 50.0 ROCKWELL C NOMINAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: -QQ-A-763 CL 440 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.812 INCHES NOMINAL IN
HARDNESS RATING50.0 ROCKWELL C NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION-QQ-A-763 CL 440 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL CORROSION RESISTING OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
THICKNESS0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
119152Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 543-3330-002?
543-3330-002 is a WASHER,FLAT.
What parts can replace 543-3330-002?
There is 1 known substitute for 543-3330-002: 119152. Substitute compatibility should be verified for your specific system.
What is the NSN for 543-3330-002?
543-3330-002 is cataloged in the U.S. Government catalog under NSN 5310-00-680-5359. 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.